What is the SI unit of luminous flux?
The SI unit of luminous flux is the lumen (lm), which measures the perceived power of light.
The population of a city is decreased by 12% in the first year and then increased by 25% in the second year. Find the population of the city at the end...
Monthly income of Ankit and Bhaskar is Rs. (x + 160) and Rs. x, respectively. If monthly income of Ankit is increased by 24% while that of Bhaskar is de...
The number of boys and girls in a school is 200 and 320 respectively. 20% of boys left the school while 40 girls took admission in the school. Find the ...
A bag contains 650 coins of 25p denomination and 1300 coins of 50p denominations. If 19% of 25p coins and 38% of 50p coins are removed, the percentage o...
A man invested all his current month income in starting of a new business in which he spends 40% in advertisement 20% of remaining in furniture 10% of r...
In an election two candidates participates. 20% voters did not vote. 25% votes declared invalid and the winner get 80 % of the valid votes. If he win by...
Monthly income of A is Rs. 44500 out of which he spent 22%, 14% and 23% of his total income in rent, medicine and transportation, respectively. Find his...
A spent 25% of his monthly income on study and 62% of the remaining on rent. If amount spent on rent is Rs. 930, then find the amount spent on study
Monthly income of A is Rs. 60000 out of which he spent 22%, 9% and 24% of his total income in rent, medicine and transportation, respectively. Find his ...
