Quantitative Aptitude Quiz Based on Adda247 Book(With Video Solution) : 20th October 2018(Solutions)

Q2. Sum of twice a fraction and 5 times its reciprocal is 7. What is the fraction?
(a) 2/5
(b) 5/4
(c) 5/2
(d) 4/5

Q3. A, B and C can finish a job working alone in 12, 8 and 24 days respectively. In how many days they can finish the job if they worked together?
(a) 5
(b) 6
(c) 4
(d) 3

Q4. What is the effective discount (in %) on two successive discounts of 20% and 10%? 
(a) 30
(b) 32
(c) 35
(d) 28

Q5. Profit of Rs 1,03,500 has to be divided between three partners A, B and C in the ratio 11:7:5. How much amount (in Rs) does B get?
(a) 22,500
(b) 49,500
(c) 50,500
(d) 31,500

Q6. The average weight of P, Q and R is 45 kg. If the average weight of P and Q be 36.5 kg and that of Q and R be 52 kg, then what is the weight (in kgs) of Q?
(a) 42
(b) 44
(c) 46
(d) 48

Q7. A shopkeeper by selling 21 items earns a profit equal to the selling price of 1 item. What is his profit percentage?
(a) 5.5
(b) 2.2
(c) 2
(d) 5

Q8. What is the value of 10% of 150% of 400?
(a) 600
(b) 50
(c) 500
(d) 60

Q9. To cover a distance of 144 km in 3.2 hours what should be the average speed of the car in meters/second? 
(a) 12.5
(b) 10
(c) 7.5
(d) 15

Q10. If in 2 years at simple interest the principal increases by 18%, what will be the compound interest (in Rs) earned on Rs 7000 in 3 years at the same rate?
(a) 1865.2
(b) 2065.2
(c) 1965.2
(d) 1765.2

Q11. A, B and C can complete a work in 20, 24 and 30 days respectively. All three of them starts together but after 4 days A leaves the job and B left the job 6 days before the work was completed. C completed the remaining work alone. In how many days was the total work completed?
(a) 10
(b) 12
(c) 14
(d) 16

Q12. The average of 17 results is 60. If the average of first 9 results is 57 and that of the last 9 results is 65, then what will be the value of 9th result?
(a) 39
(b) 78
(c) 117
(d) 156

Q13. For an article the profit is 170% of the cost price. If the cost price increases by 20% but the selling price remains same, then what is the new profit percentage?
(a) 41
(b) 50
(c) 75
(d) 125

Q14. A boat goes 15 km upstream and 10(1/2) km downstream in 3 hours 15 minutes. It goes 12 km upstream and 14 km downstream in 3 hours. What is the speed of the boat in still water?
(a) 4
(b) 6
(c) 10
(d) 14

Q15. A person lent certain sum of money at 5% per annum simple interest and in 15 years the interest amounted to Rs 250 less than the sum lent. What was the sum lent (in Rs)?
(a) 1000
(b) 1500
(c) 2400
(d) 3000