In a party, if each person shakes hands with all the persons present in the party and the total handshakes will be 66 then the total persons in that party will be -

Direction: In the following questions 3 series are given. You have to find the value of a, b and c by identifying the pattern of the series and then you have to establish the relation among a, b and c?

I.  601, 721, 751, a, 766

II. 753, 769, b, 765, 763, 764

III. 23, 24, 50, 153, c, 3085

If the ratio of two numbers is 13 : 15 and their L.C.M. is 39780. So are the numbers?

Mohit and Sudesh bought pens and notebooks from the same shop. Mohit bought 3 pens and 6 notebooks by paying an amount of ₹180. Sudesh bought 5 pens and 2 notebooks by paying an amount of ₹116. How much did Mohit spend on buying notebooks?

If 2 is added to each even digit and 1 is subtracted from each odd digit in the number 621754, then what will be the sum of number/numbers not repeated in the new number?

If 2 is added to each even digit and 1 is subtracted from each odd digit in the number 945217, then what will be the sum of number/numbers not repeated in the new number?