Question
If (64)2 – (36)2 = 20Z, the
value of z isÂSolution
ATQ ⇒  (64)2 - (36)2 = 20Z ⇒ 4096 - 1296 = 20Z ⇒ 20Z = 2800 ⇒ Z = 140
More No. System Questions
- What will come in place of the question mark (?) in the following series?
6, 24, 60, ?, 210, 336 251, 130, 274, ?, 301, 76Â
What will come in place of the question mark (?) in the following series?
22, 28, 37, ?, 72, 102
23, 27, 39, 59, ?, 123
8Â Â Â 8Â Â Â 12Â Â Â 24Â Â Â Â 60Â Â Â Â Â ?
120, 120, ?, 360, 900, 2700
135, 148, ?, 184, 207, 236
321, 240, ?, 105, 51, 6
7    8     ?     13     17     22    28
...What will come in place of the question mark (?) in the following series?
23, 46, ?, 184, 368, 736
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