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

Express each of the following ratios in its simplest form: (i) 60:72 (ii) 324:144 (iii) 85:391 (iv) 186:403

Which of the following numbers are perfect squares? (i) 121 (ii) 136 (iii) 256 (iv) 321 (v) 600

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

State the number of significant figures in each of the following: (i) 136.7 m (ii) 105.67 kg (iii) 3.4 xx 10^(6)s (iv) 0.0078 km (v) 0.00650 xx 10^(6) m