Let the incomes of A, B, and C be 3x, 4x, and 5x, respectively. Let their expenditures be 2y, 3y, and 4y, respectively. Savings of A = Income - Expenditure = 3x - 2y = 2,000. For simplicity, assume x = 2y (since ratios must be consistent). 3x - 2y = 2,000 → 3(2y) - 2y = 2,000 → 6y - 2y = 2,000 y = 500. Substitute y = 500 into C’s income: 5x = 5(2y) = 5(2 × 500) = ₹5,000. Correct Option: c
Average of four consecutive prime numbers S1, S2, S3, and S4 is (16 + x). If the average of S1 and S2 is (12 + x) and the average of S3 and S4 is (12 + ...
In a school with 400 students, the average age of the boys is 16 years and that of the girls is 12 years. If the average age of school is 14 years 9 m...
5 positive numbers are written on a piece of paper. Sum of first 3 numbers is 50 and ratio of the 4th and the 5th number is 2:3. If difference between t...
The average number of books on history, polity and geography in a library is 190, and the average number of books on history and geography is 160. If th...
In a Company the average income of all the employees is Rs. 20000 per month. Recently the company announced increment of Rs. 2000 per month for all the ...
Average weight of 5 students in a class increases by 4 kg when weight of teacher is also included. If sum of average weight of 5 students and weight of ...
The average height of each person in group 'C' having 25 people is 10 cm less than the average height of each person in group 'D' having 20 people. If t...
Komal bought 20 kg rice for Rs 30 per kg, b kg rice for Rs 35 per kg and (b + 4) kg rice for Rs 25 per kg. She mixed all type of rice together and the a...
There are only 220 students living in hostel. If 20 students left hostel, then overall expenditure of mess is reduced by Rs. 800 weekly but per student ...
Average run scored by a batsman in first ‘x’ matches is 50. In next 16 matches he scored runs with an average of 70 so that his overall average incr...
