Question

Answer

The
annual rate of compound interest, by which a sum of money becomes 125/64
times of itself in three years, is

25%

A boy
purchases bananas at the rate of 11 bananas in 10 rupees and sells at the
rate of 10 bananas in 11 rupees. What is the percentage of profit to the boy?

21%

What
is the least number which when divided by 20, 25, 35 and 40 leaves respectively
13, 18, 28, and 33 as remainder?

1393

The
denominator of a rational number is greater than its numerator by 8. If the
numerator is increased by 17 and the denominator is increased by 1, the
number becomes 3/2 the rational number is

7/15

Three
numbers are in the ratio 1 : 2 : 3 and their HCF is 12. The LCM. Of these
three numbers is

72

A
train 150 m long passes a pole in 15 second and crosses another train of same
length travelling in opposite direction in 8 seconds. The speed of the second
train is

99 km/hr

If
the lines 3x+2ky2=0 and 2x+5y+1=0 are parallel, then the value of k is

15/4

Let abc
be a three digit number and 3 does not divide it. Then abc+bca+cab is not
divisible by

9

If the roots of the quadratic equation
2x2+3x+k=0 are equal, then the value of K is

9/8

A
chord of length 14 cm is at a distance of 6 cm from the centre of a circle.
The length of another chord at a distance of 2 cm from the centre.

18 cm.

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