A daily-wages laborer was engaged for a certain number of days for ₹5,750; but being absent on some of those days he was paid only ₹ 5,000. What were his maximum possible daily wages?

Rita bought a television set with 20% discount on the labeled price. She made a profit of Rs. 800 by selling it for Rs. 16,800. The labeled price of the set was 

Three bells ring simultaneously at 11 a.m. They ring at regular intervals of 20 minutes, 30 minutes, 40 minutes respectively. The time when all the three rings together next is:

If tan⁴θ + tan²θ = 1, then the value of cos⁴θ + cos²θ is

If the price of petrol increases by 19% and Sunitha intends to spend only an additional 12 % on petrol, by what percent should she reduce the quantity of petrol purchased?

If one of the interior angles of a regular polygon is equal to 5/6 times of one of the interior angles of a pentagon, then the no. of sides of the polygon.

Sum of 5 times of a fraction and 4 times its reciprocal is 9. What is fraction?