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Delhi University MCA Previous Year Questions (PYQs)

Delhi University MCA Number System PYQ

Delhi University MCA PYQ
$\sqrt{\sqrt{1296+x^2}}=60%$ of 70. Then value of x is





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Delhi University MCA Previous Year PYQ Delhi University MCA DU MCA 2019 PYQ

Solution

Delhi University MCA PYQ
Given that $3^x$=656. The value of $5^{x-5}$ is ...
(a) 81
(b) 125
(c) 225
(d) 1/125





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Delhi University MCA Previous Year PYQ Delhi University MCA DU MCA 2021 PYQ

Solution

Delhi University MCA PYQ
If 2x = (1024)1/5, what is the value of x ?





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Delhi University MCA Previous Year PYQ Delhi University MCA DU MCA 2020 PYQ

Solution

$2^x=1024^\frac{1}{5}$
$2^x=(2^{10})^{1/5}$
$2^x=2^{10/5}$
$2^x=2^2$
$x=2$


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