Question
The average of four consecutive odd numbers is 47. What
is the largest of these numbers?Solution
Let the four consecutive odd numbers be x, x + 2, x + 4, x + 6. Their average is (x + x + 2 + x + 4 + x + 6)/4 = 47. Simplify: (4x + 12)/4 = 47. 4x + 12 = 188. 4x = 176. x = 44. The largest number = x + 6 = 44 + 6 = 50. Correct Option: c
What value should come in place of (?) in the given expression.
450 ÷ 9 + 75% of 160 − 64 ÷ 4 = ?
2/5 of 3/4 of 7/9 of 14400 = ?
7/3 of 4/5 of 15/56 of ? = 83
[564 + 32 of 18 × 9 ÷ 12 + 162 ] ÷ 4 = ?
What should come in place of (?) question mark in the given expression.
(25% of 320) + (3/8 of 400) − 30 = ?
45% of 360 - 160 + ? = √324
187 ÷ 5 ÷ 0.4 = ? – 24 × 2.4
Find the simplified value of the following expression:
[{12 + (13 × 4 ÷ 2 ÷ 2) × 5 – 8} + 13 of 8]
18 × 15 + 86 – 58 =? + 38
√(24²+285-8²-172) = ?²
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