Quantitative Aptitude Quiz For SBI/IBPS PO Mains 2021- 15th December

Q1. Ram spends Rs. 8000 for 4 years in scheme ‘A’ which offers R% p.a. at S.I. and Rs. 10,000 for 2 years in scheme ‘B’ which offers R% p.a. at C.I. He got same amount from both schemes. Find value of ‘R’.
I. 20%
II. 50%
III. 100%
(a) Either I or II
(b) Either I or III
(c) Either II or III
(d) Any one of I, II and III
(e) Only I

Q4. Work done by A, B, C and D is in arithmetic progression. C worked for 9 days and completed 30% work. A and B worked for 2 days and 3 days only. Find for how many days ‘D’ work to complete the remaining work if all four together can complete that work in 4 days.
(a) 12 days
(b) 10 days
(c) 8 days
(d) 6 days
(e) 4 days

Q5. Sandeep bought some chilli powder containing five percent impurities in the form of raw dust. He then mixed pure chilli powder to 2 kg of that impure chilli in such a way that the proportion of impurity now became 4% of total mixture. At what percent should he mark-up the price of this mixture to have an overall profit of 30% ?
(a) 25%
(b) 35%
(c) 20%
(d) 32%
(e) None of these

Q6. In an examination, there are 100 questions. For each correct answer 4 marks will be awarded, for each wrong answer 2 mark will be deducted for each unattempted question 1 mark will be deducted. If a student scored 320 marks then what could be max number of questions attempted wrong by him?
(a) 12
(b) 10
(c) 14
(d) 13
(e)None of these

Directions (8-9): Abhishek bought some chairs and tables from a shopkeeper. The marked price of a chair and a table were in the ratio 5 : 8. The shopkeeper gave discounts of 20% and 25% on the chair & the table respectively. The ratio of number of chairs and tables bought by Abhishek is 6 : 5.

Q9. If the marked price of a table set by the shopkeeper was Rs.300 more than that of a chair and the total expenditure made by Abhishek in purchasing the chairs and table from the shopkeeper was Rs.108000, then how many chairs were purchased by Abhishek?
(a) 150
(b) 60
(c) 120
(d) 90
(e) None of these

Q10. Speed of current is 10 km/hr and speed of a motor boat is 80% more than speed of current. Motor boat travels 280 km downstream with its usual speed, after that it’s increased speed by ‘s’ kmph and travelled for another 280 km then it returns and covers 560 km in upstream. If boat complete whole journey downstream to upstream in 45 hr, then find the value of ‘s’?
(a) 10 km/hr
(b) 8 km/hr
(c) 6 km/hr
(d) 12 km/hr
(e) 4 km/hr

Solutions