1 + 2 + 3 + ............. + 49 + 50 + 49 + 48 + ........+ 3 + 2 + 1 is equal to -

(5.5)³-(4.5)³ is equal to : 

The cost price of an article is 480. If it is to be sold at a profit of 6.25 %, how much would be its selling price? 

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 

Rohit purchased 12 kg of oranges for a total price of ₹480 and 18 kg of guavas at 30 per kg. What cost of the fruits purchased by Rohit?

When Vijay sells 12 pens, he gains the selling price of pens. Calculate his % profit?

Direction: Bar graph given below shows number of pens and pencils sold by five different shops. Read the data carefully and answer the questions.

A man invested Rs. 9600 in two equal parts on SI for T years and (T + 2) years at the rates of 12.5% p.a and 16% p.a respectively. If the man got a total interest of Rs. 4272, then find the value of T.