If, a + b + c = 0, the value of | ( |
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+ |
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+ |
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bc | ca |
ab |
Alternately 23 is added and 17 is subtracted from the terms. So, 634 is wrong.
NA
Now, 2772 = 2 x 2 x 3 x 3 x 7 x 11
To make it a perfect square, it must be multiplied by 7 x 11.
So, required number = 22 x 32 x 72 x 112 = 213444
Total age of 5 memeber (3 yr ago) = 27 x 5 = 135 yr
Total age of 5 members (at present) = 135 + 5 x 3 = 150 yr.
Let the persent age of child = x
? 27 = (150 + x)/6
? x = 162 - 150 = 12 yr.
If a + |
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= 1, then the value of a3 is : |
a |
Required number = H.C.F of (1657 - 6) and (2037 - 5)
= H.C.F of 1651 and 2032
= 127
Let the required number be N.
Then, N - 20% of N = 40
? N - 20N/100 = 400
? 5N - N = 200
? N = 50
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