Question
15.12 x 12.02 + 16.94 x 6.12 - 18.93 x 8.89 = ? -
25.07 What approximate value will come in place of the question mark (?) in the following question?(Note: You are not expected to calculate the exact value.)Solution
ATQ, 15.12 × 12.02 + 16.94 × 6.12 – 18.93 × 8.89 = ? – 25.07 15 × 12 + 17 × 6 – 19 × 9 ~ ? – 25 180 + 102 – 171 ~ ? – 25 {282 – 171} ~ ? – 25 111 ~ ? – 25 111 + 25 ~ ? 136 ~ ?
5, 11, 19, 29, 41, ?
12    16    43    ?       184    220
...36, 49, 23, 62, ?, 75
15Â Â Â Â Â Â Â Â Â Â Â Â 13 Â Â Â Â Â Â Â Â 28 Â Â Â Â Â Â Â Â Â Â Â Â Â Â 24 Â Â Â Â Â Â Â Â Â Â Â Â Â Â 54 Â Â Â Â Â Â Â Â 52
...5184, ?, 432, 144, 36, 12
17Â Â Â Â Â ? Â Â Â Â Â 2142 Â Â Â Â Â Â 12852 Â Â Â Â Â Â 64260Â Â Â Â Â Â 257040
...53 ? 55 49 57 47
...17 ? 33 44 57 72
...24 25 46 ? 572 2885
...0.5 1.5 5 ? 76 385
...