Question
Select the correct combination of mathematical signs
that can sequentially replace ‘*’ sign and balance the equation given below. 25 * 30 * 5 * 12 * 65 * 32Solution
25 * 30 * 5 * 12 * 65 * 32 25 + 30 ÷ 5 × 12 - 65 = 32 25 + 6 × 12 - 65 = 32 25 + 72 - 65 = 32 97 - 65 = 32 32 = 32
If x+3, x-2, 6 and 5 are in proportion then find the mean proportional to x and 9x2.
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