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- Question
If the radius of a circumscribed circle in an equilateral triangle is 14 cm. Then what will be the radius (in cm) of the inscribed circle?
Options- A. 7
- B. 14
- C. 28
- D. 35
- Correct Answer
- 7
- 1. The sum of first five prime numbers is:
Options- A. 11
- B. 18
- C. 26
- D. 28 Discuss
- 2. 40960, 10240, 2560, 640, 200, 40, 10
Options- A. 640
- B. 40
- C. 200
- D. 2560
- E. 10240 Discuss
- 3. A stock of food is enough for 240 men for 48 days. How long will the same stock last for 160 men?
Options- A. 54 days
- B. 60 days
- C. 64 days
- D. 72 days Discuss
- 4. If 5 days take 7 h to pack 35 toys, how many boys can pack 65 toys in 3 h?
Options- A. 26
- B. 39
- C. 45
- D. None of these Discuss
- 5. A pipe can fill a tank in x hours and another can empty it in y hours. They can together fill it in (y > x)?
Options- A. (x - y) hours
- B. (y - x ) hours
- C. xy / (x - y) hours
- D. xy / ( y - x) hours Discuss
- 6. The value of log 6 log 5 15625 is?
Options- A. 1
- B. 2
- C. 3
- D. None of these Discuss
- 7. 52, 51, 48, 43, 34, 27, 16
Options- A. 27
- B. 34
- C. 43
- D. 48 Discuss
- 8. Ajit is 3 times as efficient as Bablu, then the ratio of number of days required by each to work alone, completely?
Options- A. 3 : 1
- B. 1 : 3
- C. 6 : 3
- D. 3 : 6 Discuss
- 9. A is twice as good a workman as B and together they finish a piece of work in 14 days. In how many days can a alone finish the work?
Options- A. 18
- B. 20
- C. 21
- D. 24 Discuss
- 10. If P = (0.08) 2, Q = 1/(0.08) 2 and R = (1 ? 0.08) 2 ? 1, then out of the following the true relation is
Options- A. Q < P and P = R
- B. P < Q and P = R
- C. Q < R < P
- D. R < P < Q Discuss
More questions
Correct Answer: 28
Explanation:
Required sum = (2 + 3 + 5 + 7 + 11) = 28.
Note: 1 is not a prime number.
Definition: A prime number (or a prime) is a natural number that has exactly two distinct natural number divisors: 1 and itself.
Correct Answer: 200
Explanation:
So, 200 is wrong.
Correct Answer: 72 days
Explanation:
M1 = 240, D1 = 48, M2 = 160 and D2 = ?
According to the formula,
M1D1 = M2D2
? 240 x 48 = 160 x D2
? D2= (240 x 48)/160 = 72
Correct Answer: None of these
Explanation:
Given, M1 = 5, M2 = ?, T1 = 7, T2 = 3,
W1 = 35 and W2 = 65
According to the formula,
M1T1W2 = M2T2W1
? 5 x 7 x 65= M2 x 3 x 35
? M2 = (5 x 7 x 65)/(35 x 3) = 65/3 boys
Correct Answer: xy / ( y - x) hours
Explanation:
Net filling in 1 hour = (1/x - 1/y) = (y - x) / xy
? Time taken to fill the tank = xy / (y - x) hrs.
Correct Answer: 1
Explanation:
log6 log515625 = log6 log5(5)6
= log66(log55) = 1
Correct Answer: 34
Explanation:
So, 34 is wrong.
Correct Answer: 1 : 3
Explanation:
Efficiency of Ajit : Bablu = 3 : 1
No. of days 1 : 3
Correct Answer: 21
Explanation:
One day's work of A and B = 1/x + 1/2x = 1/14
? x = 21
Since A is twice efficient as B so A will take half of the day taken by B.
Correct Answer: R < P < Q
Explanation:
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