If a + b + c = 12, a² + b² + c² = 52, then what is ab + bc + ca equal to-

The MRP of a watch is Rs.4750. The shop sells it at 12% discount. If the shopkeeper had purchased the watch for Rs. 3,850, what is his gain? 

When did the great revolution in computer field come?

Directions: Which of the phrases (A), (B), (C) and (D) given below each sentence should replace the phrase printed in bold type to make the sentence grammatically correct. If the sentence is correct as it is, mark (E), i.e., 'No correction required' as the answer.

In order to earning decent living we need to have a good job which pays a substantial amount of money.

In a language FIFTY is written as CACTY, CAR as POL, TAR as TOL, how can TARIFF be written in that language?

From the given alternative words, select the word which cannot be formed using the letters of the given word:
MERCHANDISE