Ans- B, National Science Day is celebrated in India on 28 February each year to mark the discovery of the Raman effect by Indian physicist Sir Chandrashekhara Venkata Raman on 28 February 1928. He was conferred the Nobel Prize in Physics in 1930.
A man donated 22%, 11% and 26% of his income to three NGOs ‘A’, ‘B’ and ‘C’, respectively. They spent 75%, 80% and 50% of respective sums re...
A chair is sold for Rs 720 after giving a discount of 10% on its marked price. The cost price of the chair is Rs 640. If it is sold at the marked price,...
P spends 26% of his salary on transportation, 24% on food, 22% on children’s education and 19% on medical. He deposits the remaining amount of Rs....
A spent 23% of his monthly income on study and 44% of the remaining on rent. If amount spent on rent is Rs. 1694, then find the amount spent on study
A man spends 22% and 14% of his monthly salary on rent and transportation, respectively. Out of the remaining money, he spends 32% on food and 47% on en...
A factory produces 1200 units of product X in a day. The production rate of product Y is 25% more than that of product X. In the next 5 days, the factor...
In a given years, A sold 1200 caps while B sold 20% more number of caps than A and C sold 10% less number of caps than B. Find the ratio between the num...
A company allowed 9% commission on the total sales made by the salesman and a bonus of 1% on the sales over Rs. 40000. If the salesman deposited Rs. 108...
The respective ratio of monthly income of A to monthly income of B is 11:12, and A’s saving is (100/17)% more than B’s saving. Find the expenditure ...
1100 boys and 700 girls are examined in a test; 42% of the boys and 30% of the girls pass. The percentage of the total who failed is :