Direction: What value should come in the place of (?) in the following questions.
√480 * ?2 = (17.89 ÷4.95) * (19.98 * √9800)
A. 15
B. 18
C. 21
D. 12
E. 23
Sol:
√480 * ?2 = (17.89 ÷4.95) * (19.98 * √9800)
22 * ?2 = 18/5 * 20 * 99
? = 18
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