9
Q:

# A sum of money trebles itself in 15years 6months. In how many years would it double itself

 A) 6years 7months B) 7years 9 months C) 5years 8months D) 6years 8months

Explanation:

sum = x. then, s.i.=2x, time =15 ½ years = 31/2 years

rate =(100*2x)/(x*31/2)% =400/31%

now ,sum =x, s.i.=x, rate =400/31%.

Time = (100*x)/(x*400/31)=31/4 year = 7years 9 months

Q:

The Simple interest accrued on an amount of Rs. 2,500 at the end of six years is Rs.1875. What would be the simple interest accrued on an amount of Rs. 6875 at the same rate and Same period?

 A) Rs. 4,556.5 B) Rs. 5,025.25 C) Rs.5,245.5 D) None of these

Explanation:

16 1090
Q:

Excluding the stoppages, the speed of a bus is 64 km/hr and including the stoppages the speed o the bus is 48km/hr. For how many minutes does the bus stop per hour?

 A) 12.5 minutes B) 15 minutes C) 10 minutes D) 18 minutes

Explanation:

27 1897
Q:

If 25a + 25b = 115, then what is the average of a and b?

 A) 4.6 B) 3.4 C) 2.5 D) None of these

Explanation:

32 1988
Q:

There are two numbers such that the sum of twice the first number and thrice the second number is 300 and the sum of thrice the first number and twice the second number is 265. Which is the largest number ?

 A) 24 B) 39 C) 85 D) 74

Explanation:

7 1255
Q:

Prithvi spent Rs.89,745 on his college fees, Rs 51,291 on Personality Development Classes, and the remaining 27% of the total amount he had as cash with him. What was the total amount?

 A) Rs.1,85,400 B) Rs.1,89,600 C) Rs.1,91,800 D) Rs.1,93,200