Question
The LCM of two numbers is 180, and the numbers are in
the ratio 5:9. What will be the sum of the numbers?Solution
ATQ,
Let the numbers be 5m and 9m.
LCM of the numbers = 45m
Given, 45m = 180
So, m = 4
Thus, the numbers are 20 and 36.
Hence, the sum = 20 + 36 = 56.
In a colony, there are 90 APL families and 46 BPL families. Each APL and BPL family got blankets equal to 25% and 75%, respectively of total number of f...
From the salary of a software engineer, if 15% is used as house rent, 25% of the remaining is spent on household items, 25% of the remaining as income t...
The only expenses of Arun are on grocery, rent and fun expenses. Arun spent Rs. 5,250 on fun, amount spent by him on rent is Rs. 9,000 more than that on...
A scored 38% marks and failed by 40 marks whereas B scored 68% marks, which was 50 more than the passing marks of the examination. Find the total marks ...
40 Litres of water is added to 60 litres of a solution containing 40% alcohol . What is the concentration of alcohol in solution now?
36% of one number is equal to 24% of another number. If the sum of both numbers is 420, find the difference between them.
The amount (in Rs) received at 10% per annum compound interest after 3 yrs is Rs 1,19,790. What was the principal?
 An officer ordered 3 computers of brand X and some computers of brand Y. The price of one computer of brand X was thrice that of brand Y. When the ord...
In a school, 30% of the students are not participating in any competition. 80% of the students who are participating in the competition are girls. If 42...
Rakesh obtained 25% more marks than Ambuj Suresh obtained 40% less marks than Rakesh. Marks obtained by Suresh are what percent less than marks obtaine...