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Questions and Answers
In triangle ABC, points D and E are on sides BC and AB respectively, such that angle ACB = angle DEB. If AB = 12 cm, BE = 5 cm, and BD:CD = 1:2, what is the length of BC?
In triangle ABC, points D and E are on sides BC and AB respectively, such that angle ACB = angle DEB. If AB = 12 cm, BE = 5 cm, and BD:CD = 1:2, what is the length of BC?
- 8√3 cm
- 5√5 cm
- 6√5 cm (correct)
- 6√3 cm
A well with an inner radius of 3 m is dug 6 m deep. The soil taken out is spread evenly around it to form an embankment with a width of 2 m. What is the height of the embankment?
A well with an inner radius of 3 m is dug 6 m deep. The soil taken out is spread evenly around it to form an embankment with a width of 2 m. What is the height of the embankment?
- 3 3/4 m
- 4 1/2 m
- 3 3/8 m (correct)
- 4 1/4 m
If $cosec \theta = \frac{13}{12}$, then what is the value of $\frac{sin \theta (1 - tan \theta)}{tan \theta (1 + cosec \theta)}$?
If $cosec \theta = \frac{13}{12}$, then what is the value of $\frac{sin \theta (1 - tan \theta)}{tan \theta (1 + cosec \theta)}$?
- 35/108
- 35/234 (correct)
- 25/156
- 25/78
In 2020, the ratio of incomes of A and B was 5:4. In 2020 and 2021, their individual income ratios were 4:5 and 2:3, respectively. If the total income of A and B in 2021 was Rs. 7,05,600, what was B's income in 2021?
In 2020, the ratio of incomes of A and B was 5:4. In 2020 and 2021, their individual income ratios were 4:5 and 2:3, respectively. If the total income of A and B in 2021 was Rs. 7,05,600, what was B's income in 2021?
If $x = 32.5$, $y = 34.6$, and $z = 30.9$, then the value of $x^3 + y^3 + z^3 - 3xyz$ is $0.98k$. What is the value of k?
If $x = 32.5$, $y = 34.6$, and $z = 30.9$, then the value of $x^3 + y^3 + z^3 - 3xyz$ is $0.98k$. What is the value of k?
The base of a right prism is a triangle with sides 8 cm, 15 cm, and 17 cm, and its lateral surface area is 480 cm². What is the volume of the prism?
The base of a right prism is a triangle with sides 8 cm, 15 cm, and 17 cm, and its lateral surface area is 480 cm². What is the volume of the prism?
What is the value of the expression $11.4 + 22.5 \times 6/7 - 33.5 \div 9$?
What is the value of the expression $11.4 + 22.5 \times 6/7 - 33.5 \div 9$?
In a class of 45 students, 33 1/3% are boys, and the rest are girls. The average score of the girls in Science is 66 2/3% more than that of the boys. If the average score of all students is 78, what is the average score of the girls?
In a class of 45 students, 33 1/3% are boys, and the rest are girls. The average score of the girls in Science is 66 2/3% more than that of the boys. If the average score of all students is 78, what is the average score of the girls?
A car travels at 75 km/hr. The driver sees a bus 80 m ahead moving in the same direction. After 15 seconds, the bus is 40 m behind the car. What is the speed of the bus?
A car travels at 75 km/hr. The driver sees a bus 80 m ahead moving in the same direction. After 15 seconds, the bus is 40 m behind the car. What is the speed of the bus?
Three numbers are in the ratio 1/2 : 2/3 : 3/4. If the difference between the largest and smallest number is 33, what is the HCF of the three numbers?
Three numbers are in the ratio 1/2 : 2/3 : 3/4. If the difference between the largest and smallest number is 33, what is the HCF of the three numbers?
Simplify the expression: $(\tan \theta + \cot \theta) (\sec \theta + \tan \theta) (1 - \sin \theta)$ where $0° < \theta < 90°$.
Simplify the expression: $(\tan \theta + \cot \theta) (\sec \theta + \tan \theta) (1 - \sin \theta)$ where $0° < \theta < 90°$.
In a medical transaction, 17 times the cost price equals 8 times the sum of the cost price and selling price. What is the gain or loss percentage?
In a medical transaction, 17 times the cost price equals 8 times the sum of the cost price and selling price. What is the gain or loss percentage?
P alone can complete a work in 18 days. P worked for 5 days, then Q joined him and together they completed the rest of the work in 6 2/5 days. How many days will Q take to complete 66 2/3% of the same work?
P alone can complete a work in 18 days. P worked for 5 days, then Q joined him and together they completed the rest of the work in 6 2/5 days. How many days will Q take to complete 66 2/3% of the same work?
Rs. 5,000 is divided into two parts. The simple interest on the first part for $4\frac{1}{2}$ years at $6\frac{2}{3}%$ p.a. is double the simple interest on the second part for $2\frac{1}{4}$ years at 4% p.a. Find the ratio of the second part to the first part.
Rs. 5,000 is divided into two parts. The simple interest on the first part for $4\frac{1}{2}$ years at $6\frac{2}{3}%$ p.a. is double the simple interest on the second part for $2\frac{1}{4}$ years at 4% p.a. Find the ratio of the second part to the first part.
If $847 \times 385 \times 675 \times 3025 = 3^a \times 5^b \times 7^c \times 11^d$, what is the value of ab - cd?
If $847 \times 385 \times 675 \times 3025 = 3^a \times 5^b \times 7^c \times 11^d$, what is the value of ab - cd?
A circle is inscribed in triangle PQR, touching the sides QR, PR, and PQ at points S, U, and T, respectively. Given PQ = (QR + 5) cm, PQ = (PR + 2) cm, and the perimeter of triangle PQR is 32 cm. What is the length of PR?
A circle is inscribed in triangle PQR, touching the sides QR, PR, and PQ at points S, U, and T, respectively. Given PQ = (QR + 5) cm, PQ = (PR + 2) cm, and the perimeter of triangle PQR is 32 cm. What is the length of PR?
What is $\frac{1 + cos \theta - sin^2 \theta}{sin \theta (1 + cos \theta)} \times \frac{\sqrt{sec^2 \theta + cosec^2 \theta}}{tan \theta + cot \theta}$ equal to, given $0° < \theta < 90°$?
What is $\frac{1 + cos \theta - sin^2 \theta}{sin \theta (1 + cos \theta)} \times \frac{\sqrt{sec^2 \theta + cosec^2 \theta}}{tan \theta + cot \theta}$ equal to, given $0° < \theta < 90°$?
An article was sold for Rs. 716 after a discount of 10.5%. If a discount of 6.5% is given instead, for how much should the article be sold?
An article was sold for Rs. 716 after a discount of 10.5%. If a discount of 6.5% is given instead, for how much should the article be sold?
If the 10-digit number 75462A97B6 is divisible by 72, then what is the value of $\sqrt{8A - 4B}$?
If the 10-digit number 75462A97B6 is divisible by 72, then what is the value of $\sqrt{8A - 4B}$?
A starts a business with Rs. 54,000. B and C join after 4 and 6 months, respectively. At the end of the year, the profit is divided among the three in the ratio 1:4:5. What is the sum of the capitals invested by B and C?
A starts a business with Rs. 54,000. B and C join after 4 and 6 months, respectively. At the end of the year, the profit is divided among the three in the ratio 1:4:5. What is the sum of the capitals invested by B and C?
Flashcards
Similar Triangles
Similar Triangles
Points D and E are on sides BC and AB of triangle ABC, respectively. Angle ACB equals angle DEB. Given AB=12cm, BE=5cm, BD:CD = 1:2
Embankment Height Calculation
Embankment Height Calculation
Soil is spread evenly around a well to form an embankment. Calculate the height of the embankment.
Trigonometric Simplification
Trigonometric Simplification
Apply trigonometric identities to simplify the given expression involving sine, cosine, and tangent.
Income Ratio Problem
Income Ratio Problem
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Algebraic Identity Application
Algebraic Identity Application
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Right Prism Volume
Right Prism Volume
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Decimal Arithmetic
Decimal Arithmetic
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Weighted Averages
Weighted Averages
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Relative Speed
Relative Speed
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Ratio and HCF
Ratio and HCF
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Trigonometric Expression Simplification
Trigonometric Expression Simplification
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Profit Loss
Profit Loss
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Combined Work Problem
Combined Work Problem
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Simple Interest Ratio
Simple Interest Ratio
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Prime Factorization Equation
Prime Factorization Equation
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Incircle Tangent Property
Incircle Tangent Property
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