sum of digits is same except for odd man 253.136,352,460,324,631,244 (i)136 (ii)324 (iii)352 (iv)631

253, 136, 352, 460, 324, 631, 244 (a) 136 (b) 324 (c) 352 (d) 631

All nos are even except the odd man; 10,14,16,18,21,24,26(i)26(ii)24 (iii) 21 (iv) 18

All nos are prime except the odd man; 3,5,7,12,17,19(i)19(ii)17 (iii) 13(iv)12

All nos are odd except the odd man 3,5,9,11,14,17,21(i)21 (ii) 17 (iii) 14 (iv) 9

All nos are perfect square except the odd man 1,4,9,16,23,25,36( i) 9 (ii) 23 (iii) 25 (iv) 36

The terms of an arithmetic sequence add to 715. The first term of the sequence is increased by 1, the second term is increased by 3. the third term is increased by 5, and in general, the rth term is increased by the rth odd positive integer. The terms of the new sequence add to 836. The sum of the first, last, and middle terms of the original sequence is (i) 190 (ii) 96 (iii)200 (iv) 195

Express each of the following numbers as the sum of two odd primes . (i) 36, (ii) 42, (iii) 84, (iv) 98

Express each of the following odd numbers as the sum of three odd prime numbers . (i) 31, (ii) 35, (iii) 49, (iv) 63

Two dice are thrown at the same time. Write down the possible outcomes. Find the probability of getting the sum of two numbers appearing on the top of the dice as : (i) 13 (ii) less than 13 (iii) 10 (iv) less than 10.

Write the place value of 2 in the following decimal numbers: ( i ) 2.56( ii) 21.37 (iii) 10.25 (iv) 9.42 (v) 63.352 .