Simple & Compound Interest MCQs for LDC
Practice 20 free simple & compound interest multiple choice questions for LDC exam. Instant answers, explanations in Hindi and English, and topic-wise targeted practice.
Master Simple & Compound Interest under Arithmetic for LDC with our curated MCQ set. Every question is sourced from real Rajasthan exam patterns and updated regularly. Switch between Hindi and English anytime. Use this daily to strengthen weak areas before the exam.
LDC — Arithmetic — Simple & Compound Interest
20 Questions • Instant results & explanations • Hindi & English
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Question 1 of 20
A dishonest dealer claims to sell his goods at cost price, but uses a false weight of 900 grams for 1 kg. Find his profit percentage.
Question 2 of 20
A sum of money becomes 5 times of itself in 20 years at simple interest. Find the rate of interest.
Question 3 of 20
The present population of a village is 8000. If males increase by 10% and females increase by 8%, the total population will become 8720. Find the present number of males in the village.
Question 4 of 20
What will be the net price of an article with a marked price of Rs. 1000 after successive discounts of 30% and 20%?
Question 5 of 20
A reduction of 10% in the price of tea enables a dealer to purchase 2 kg more tea for Rs. 360. What is the original price of tea per kg?
Question 6 of 20
The average age of 30 boys is 14 years. When the teacher is included, the average becomes 15 years. What is the teacher's age?
Question 7 of 20
A tank contains a mixture of milk and water in the ratio 5:3. 16 liters of the mixture is drawn out and replaced with 16 liters of water, making the new ratio 3:5. What is the total capacity of the tank?
Question 8 of 20
Difference between compound interest for 3rd year and 2nd year on a sum at 10% per annum is Rs. 22. Find the sum.
Question 9 of 20
10 men can complete a work in 15 days. After working for 5 days, 5 more men join them. In how many days will the remaining work be completed?
Question 10 of 20
A sum becomes 3 times in 5 years at simple interest. In how many years will it become 7 times at the same rate?
Question 11 of 20
If the price of sugar increases by 20%, by what percentage must a householder reduce his consumption so that the expenditure remains the same?
Question 12 of 20
A sum of Rs. 800 amounts to Rs. 920 in 3 years at simple interest. If the interest rate is increased by 3%, what will the new amount be?
Question 13 of 20
A grocer mixes two varieties of tea priced at Rs. 60/kg and Rs. 65/kg in the ratio 3:2. Find the price per kg of the mixed tea.
Question 14 of 20
A and B can do a piece of work in 20 and 30 days respectively. They work together for 4 days, and then A leaves. How many days will B take to finish the remaining work?
Question 15 of 20
A train running at 54 km/h takes 20 seconds to pass a platform. Next, it takes 12 seconds to pass a man walking at 6 km/h in the same direction in which the train is going. Find the length of the train.
Question 16 of 20
Rs. 4000 is lent in two parts, one at 8% SI and the other at 10% SI. If the total annual interest is Rs. 352, find the amount lent at 8%.
Question 17 of 20
The length of a rectangle is increased by 10% and its breadth is decreased by 10%. The percentage change in its area is:
Question 18 of 20
The Simple Interest and Compound Interest on a certain sum for 2 years are Rs. 400 and Rs. 410 respectively. Find the rate of interest.
Question 19 of 20
A sum triples itself in 10 years at simple interest. Find the rate of interest per annum.
Question 20 of 20