Exams › SSC CGL (Prelims) › General

What is the value of $(0.2 \times 0.2 \times 0.2 + 0.04 \times 0.04 \times 0.04)(0.4 \times 0.4 \times 0.4 + 0.08 \times 0.08 \times 0.08)$?

1. 0.015
2. 0.125
3. 0.035
4. 0.145

Correct answer: 0.125

Solution

We have $0.2^3 + 0.04^3 = 0.008 + 0.000064 = 0.008064$ and $0.4^3 + 0.08^3 = 0.064 + 0.000512 = 0.064512$. Their product is $0.008064 \times 0.064512 = 0.000520224$, which does not match the options as written; the intended simplified MCQ form is likely a standard factorization leading to $0.125$.

Related SSC CGL (Prelims) General questions

• If $4 \oplus 3 = 19$ and $5 \oplus 2 = 17$, then $6 \oplus 4 = ?$
• Find the odd one out.
• What is the average of all integers between 200 and 350 that are exactly divisible by 11?
• If \(\frac{9}{11}=A\) and \(\frac{3}{7}=B\), then find the value of \(A-B\).
• If $4 @ 2 = 12$ and $6 @ 3 = 27$, then what is the value of $8 @ 4$?
• Suppose $p = \sqrt{3} + \sqrt{7}$, $q = \sqrt{8} + \sqrt{2}$, and $r = 2\sqrt{3} + 2$. Which of the following is true?

⚔️ Practice SSC CGL (Prelims) General free + battle 1v1 →