RAILWAY Maths Questions
Q.No: 1
A sum of Rs.42000 is lent out in two parts in such a way that the compound interest on the first part in two years at the rate of 12.5% per annum compounded annually is Rs.6375. Find the interest on other part for two years at the rate of 6.5% per annum on simple interest.
- A) Rs.2340
- B) Rs.2650
- C) Rs.2700
- D) Rs.2120
Correct Ans: A
Q.No: 2
Mohan invested Rs.P on simple interest at the rate of 12.5% p.a. for 3 years, and he invested Rs.(P+ 2000) on compound interest at the rate of 10% p.a. for 2 years. If the total interest earned by him is Rs.8610, find the total amount invested by Mohan.
- A) Rs.28000
- B) Rs.24000
- C) Rs.30000
- D) Rs.36000
Correct Ans: C
Q.No: 3
If I walk at 6 km/hr, I miss a train by 4 minutes. If I walk at 7 km/hr, I reach the station 6 minutes before the departure of the train. The distance between my house and the station is?
- A) 6 km
- B) 6.5 km
- C) 7 km
- D) 5 km
Correct Ans: C
Q.No: 4
The average height of 4 men is 167 cm. The average height of 5 women is 152 cm. The average height of 3 boys is 100 cm. Find the average height of all these 12 members.
- A) 132 cm
- B) 144 cm
- C) 148 cm
- D) 139 cm
Correct Ans: B
Q.No: 5
If the successive discounts be 20%, 10% and 5%, then the single equivalent rate of discount is.
- A) 31.6%
- B) 31.5%
- C) 31%
- D) 31.4%
Correct Ans: A