MCQ
Basic Numeracy MCQ - Practice Questions with Answers
Solve 3,138 Basic Numeracy questions for RAS/RPSC preparation.
Practice questions
Q1In a school science quiz, Kavita answered 35% of 120 questions correctly. How many questions did she answer correctly?
Correct questions = 35% of 120 = 35/100 × 120 = 42. Therefore, Kavita answered 42 questions correctly. The percentage is taken on the total 120 questions. The trap is to treat 35% as 35 questions or to subtract from 120.
Q2A village seed bank has 5 male farmers and 4 women supervisors available. A 4-member crop advisory committee is to be formed with at least 2 women. In how many ways can the committee be formed?
At least 2 women means the committee can have 2, 3, or 4 women. Cases: 2 women and 2 men = 4C2 x 5C2 = 6 x 10 = 60. 3 women and 1 man = 4C3 x 5C1 = 4 x 5 = 20. 4 women and 0 men = 4C4 x 5C0 = 1 x 1 = 1. Total = 60 + 20 + 1 = 81. All valid cases with 2 or more women must be added. The common trap is counting only exactly 2 women, which gives 60.
Q3Bhanwar saves money for a long-distance bus pass. At what annual simple interest rate will any sum become double in 8 years?
To double under simple interest, the interest must equal the principal. So P × R × 8 / 100 = P. Cancelling P gives 8R/100 = 1, hence R = 100/8 = 12.5%. The required rate is 12.5% per annum. Taking 8% as the rate confuses the time given with the percentage rate.
Q4In the line graph above, by what percentage did the price of cooking oil increase from Week 1 to Week 4?
Cooking oil price in Week 1 = ₹120 and in Week 4 = ₹150. Increase = 150 - 120 = ₹30. Percentage increase = (30/120) × 100 = 25%. The base must be the Week 1 price, ₹120, so the increase is 25%. Using Week 4 as the base gives a wrong lower answer.
Q5Sunita keeps ₹24000 in a Jaipur bank savings plan at 7.5% simple interest per annum for 2 years. What interest will she receive?
Simple interest = PRT/100. Here P = 24000, R = 7.5 and T = 2. Interest = 24000 × 7.5 × 2 / 100 = 3600. So Sunita will receive ₹3600 as interest. The correct interest is ₹3600. The trap is to calculate interest for only one year and stop at ₹1800.
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More questions
6Kavita's monthly scholarship under a coaching support scheme was ₹2,400. It is increased by 15%. What is the new monthly scholarship?
7Study the pie chart. What is the ratio of Jaipur's medals to Kota's medals?
8In two training blocks of a state scholarship programme, the sanctioned seats are 64 and 100. The coordinator wants the middle block to have the mean proportional number of seats between these two. How many seats should the middle block have?
9Sunita used to save 40% of her monthly salary in a bank account. After her salary increased by 20%, she began saving 45% of the new salary. Her monthly bank saving increased by ₹2800. What was her original monthly salary?
10In the bar diagram above, what is the ratio of mangoes sold on Tuesday to apples sold on Thursday?
11At a Jaipur grocery counter, the daily collection from rice and wheat is in the ratio 5:7. If the total collection is ₹4200, how much was collected from rice?
12In the pie chart above, by what percentage does Jalore's share of the literate population exceed Bundi's share?
13A farmer in Kota has three mustard plots. The areas are 2, 3 and 5 bighas, and the yields are 9, 11 and 13 quintals per bigha respectively. What is the overall mean yield per bigha?
14A Bikaner exam library invests ₹62500 at 4% per annum. What is the difference between compound interest and simple interest for 3 years, when interest is compounded annually?
15Using the table above, the combined total enrolment of Govindgarh and Phulera exceeds the total enrolment of Bassi by what percentage?