Question
How many numbers in the range from 200 to 800 are
divisible by 4, 8, and 16?Solution
ATQ;
If a number is a multiple of 4, 8, and 16, then the number is a multiple of the L.C.M of 4, 8, and 16.
L.C.M of 4, 8, and 16 = 16
Smallest multiple of 16 between 200 and 800 = 208
Largest multiple of 16 between 200 and 800 = 784
Common difference = 16
Let the required number of terms be 'n'.
So, 208 + (n - 1) × 16 = 784
Or, n - 1 = (784 - 208) ÷ 16 = 36
So, n = 36 + 1 = 37
So, there are 37 numbers between 200 and 800 which are multiples of 4, 8, and 16.
Evaluate: 360 ÷ [ {18 − (6×2)} × 5 ] + 72 − 33
(43)² - (28)² + (32)² = ?% of 2500
Evaluate:
√729 + √49 - √16 + 1/√64
What will come in place of (?) in the given expression.
12.5 + 7.75 - 3.6 = ?62 of 8 - 320 ÷ 4 = ?3 + 200
2(1/3) + 2(5/6) – 1(1/2) = ? – 6(1/6)
What will come in the place of question mark (?) in the given expression?
30% of 520 + 16% of 1500 = ? + 244
60% of 120 – ?% of 64 = 20% of 200
35% of 840 + 162 = ? – 25% × 300
20% of 240 + 18% of 200 = ?
