Question
15 pens and 30 pencils cost Rs. 180. If the cost of a
pencil is Rs. 4, then find the cost of 10 pens.Solution
ATQ, Let the cost of a pen be Rs. n. So, 30 × 4 + 15n = 180 Or, 120 + 15n = 180 Or, 15n = 60 Or, n = 4 Therefore, cost of 10 pens = 10 × 4 = Rs. 40
Each of the articles was marked 55% above its cost price and while selling ‘y’ % discount was given on it. The selling price of the article M is Rs....
The income of Tina is Rs.26000 and she saves 30% of her income. The savings of Kajal is Rs.3000 more than that of Tina and she spends 60% of her income....
The value of A’s car is depreciating by 25% every year whereas the value of his house is appreciating by 17% each year as compared to the previous yea...
Anil spends 20% of the monthly income on the reconstruction of his house, 15% on basic needs, 10% of the remaining on travelling. If he spends (100/9)% ...
The income of Anand is 20% more than the income of Mayank and the income of Radhika is 60% of the combined income of Anand and Mayank. By what percentag...
Raj saves Rs. 3000 more if he spends 65% of his income instead of 85%. Find the savings of Sanjay whose income is 20% more than that of Raj, and spends ...
There are 440 balls (wooden + rubber) in a box. Number of wooden balls in the box are 20% more than number of rubber balls in the box. If 40% of the ru...
A scored 40% marks and failed by 40 marks whereas B scored 70% marks, which was 80 more than the passing marks of the examination. Find the total marks ...
The salary of an employee is increased by 6% every year. If the present salary is ₹60,000 per month, what will be the salary after 2 years?
Income of A is 60% of the Income of B and A together. The saving of B is 30% of his Income and equals to Rs. 9600. Find the difference between the incom...
