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Start learning 50% faster. Sign in nowThe frog needs to take 6 steps to cross the pond. He can do this in the following ways: Crossing the pond by 6-unit steps = 1 way. Crossing the pond by 4-unit steps and 1 double step = 5C1 = 5C4 = 5 ways. Crossing the pond by 2-unit steps and 2 double steps = 4C2 = 6 ways. Crossing the pond by 3 double steps = 1 way. Hence, the required number of ways = 1 + 5 + 6 + 1 = 13
What will come in place of (?) Question mark in the given number series.
1, 2, 5, 14, 41, 122, ?
38% of 18/225 of 31/19 of 15225 =?
What will come in place of the question mark (?) in the following series?
72, 108, 172, ?, 416, 612
64, 32, 48, 120, 420, ?
64, 256, 128, 512, 256, ?
188 178 158 ? 88 38
2807, 1400, 697, 346, 171, 84, 41, ?
324 972 486 1458 729 ?
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