Question
`[(7.99)^2 - (13.001)^2 + (4.01)^3]^2=`
? What approximate value will come in place of question mark (?) in the following question? (you are not expected to calculate the exact value)Solution
`[(7.99)^2 - (13.001)^2 + (4.01)^3]^2=` ? `[(8)^2 - (13)^2 + (4)^3]^2=` ? `[64 - 169 + 64]^2=` ? `[-41]^2 = ` ? ? = 1681
50 62 ? 96 126 138
...89Â Â Â Â Â 78Â Â Â Â Â 74Â Â Â Â Â 67Â Â Â Â Â 63Â Â Â Â ?
4 6 ? 31 119 601
...Find the maximum number of trees which can be planted, 25 meters apart, on the two sides of a straight road 2125 meters long
55 46 60 41 65 36 ?
8 6 2 ? -1 9.5
...9999 6666 ? 2962.66 1975.11 1316. 74
...2, 17, 147, 1167, 8157, 48957
3,   2,   3,  8,  31,  ?
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
4 7 6
15 ? 21
44 68 60