51.

The difference between the greatest and least five-digit numbers formed by the digits 2, 5,0, 6, 8 is (repetition of digits are not allowed)

• 69552

• 65925

• 65952

• 65952

The price of a shirt after 15% discount is ₹ 119/- What was the market price of the shirt before discount?

• ₹ 129

• ₹ 140

• ₹ 150

• ₹ 150

If , then the value of pa + qb + rc is

• 0

• 1

• 2

• 2

The average of a, b, c is 20 and that of b, c, d is 25; if d = 30, then the value of a is

• 25

• 45

• 30

• 30

A store sells a watch for a profit of 25% of the cost. Then the percentage of profit against selling price is

• 22%

• 20%

• 18%

• 18%

If A is equal to 20% of B and B is equal to 25% of C; then what percent of C is equal to A?

• 10%

• 15%

• 5%

• 5%

A gun is fired at a distance of 1.7 km from Ram and he hears the sound after 25 seconds. The speed of sound (in m/sec) is

• 60

• 62

• 64

• 64

A sum of ₹ 3,000/- yields an interest of ₹ 1,080/- at 12% per annum simple interest in how many years?

• 4 years

• 3 years

• 5 years

• 5 years

The simplest value of  is

If , then the value of  is

• 0

• 
• 
•