# Quantitative Aptitude MCQs for RRB PO/Clerk Mains 2018: 12 September

## Quantitative Aptitude MCQs for RRB PO/Clerk Mains 2018: 12 September

1. If the average weight of three persons A, B and C is 30 kg and the average weight of other three persons C, D and E is 27 kg, what is the sum of the weight of all five persons A, B, C, D and E?
1) 128.5 kg2) 157 kg3) 171 kg4) Data inadequate5) None of these
2. The sum of the ages of X and Y is 70 years. Twenty years ago, the age of X was five times the age of Y. What will be 140% of the difference between the ages of X and Y?
1) 49 years2) 98 years3) 24.5 years4) 28 years5) None of these
3. A shopkeeper bought 75 kg rice at the rate of ₹ 16 per kg. He sold 35 kg of it at 20% profit and the remaining 40 kg at 15% profit. What is his total profit percentage in this transaction?
1) 35%2) 27.5 %3) 30%4) 37.5%5) None of these
4. The sum of three numbers is 140. If the ratio of the first number to the second is 1 : 3 and that of the second to the third is 9 : 16, what is the sum of the second and the third number?
1) 852) 1053) 1154) 1255) 135
5. A shopkeeper bought an item and sold it at a loss of 10%. Had he bought it for 20% less and sold it for ₹ 176 more he would have had a profit of 40%. What is the cost price of the item?
1) ₹ 12002) ₹ 960
3) ₹ 840
4) ₹ 8005) ₹ 760
6. In how many different ways can the letters of the word “School” be arranged?
1) 7202) 3603) 1804) 1205) 60
7. If the numerator of a fraction is increased by 240% and its denominator by 250%, the resultant fraction is 17/7. What is the original fraction?
1) 7/32) 5/23) 9/44) 8/35) 12/5
8. A card is drawn from a pack of 52 cards. What is the probability that it is either a Queen or a Jack?
1) 1/132) 1/263) 2/134) 3/135) None of these
9. If the compound interest on a certain amount for three years at a rate of 17% pa is ₹ 24064.52, what will be the simple interest on the same amount and at the same interest rate in four years?
1) ₹ 272002) ₹ 204003) ₹ 284604) ₹ 252405) None of these
10. A, B and C can do a piece of work in 24, 36 and 48 days respectively. They started the work together but A left after five days. B left 10 days before the completion of the work. In how many days was the work completed?
1) 16 days2) 20 days3) 18 days4) 22 days5) None of these

1. 4
2. 4
3. 5
4. 4
5. 4
6. 2
7. 2
8. 3
9. 1
10. 4
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