Question
Three solid Metallic cubes of edges 15cm, 17cm and 18cm
are melted together to make a new cube. 296 cm3 of the melted material is lost due to improper handling. The area (in cm2) of the whole surface of the newly formed cube is:Solution
Volume of all three cubes = 153 + 173 + 183 = 3375 + 4913 + 5832 = 14120 cm3 Now, 296 cm3 of the melted material is lost due to improper handling. Volume of new cube = 14120 – 296 = 13824 cm3 Side of new cube = 24 cm Total Surface area of new cube = 6 (side)² = 6 (24)² = 3456 cm ²
351Â Â Â 261Â Â Â 181Â Â Â 111Â Â Â 51Â Â Â ?
Find the 31st term of the series 25, 29, 33……
632, 560, 494, 434, ?, 332
1331      1000            729       512       ?             216
...2556   636    156    ?    6
3 5 15 75 1125 ?
...1. In series II, if ‘x’ is the right term, then find which of the following statement(s) are true.
I. x/124 is a factor 6 and 8.
73920, 9240, ?, 220, 44, 11
12 78 385 ? 4629 9260
...A number series is given below, which follows a specific pattern. If 'A' represents the 'x'th term and 'B' represents ...
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