Question
The ratio between the sum of the digits of a two-digit
number and that two-digit number is 1 : 7. If the digit in the unit's place is four less than the digit in the ten’s place, then find the 56% of the number.Solution
ATQ, Let ten's digit and unit's digit be x and (x-4) respectively Sum of digits = x + (x-4) = 2x – 4 Let the number be 10x + (x-4) = 11x - 4 (2x – 4) / (11x – 4) = 1/7 14x – 28 = 11x – 4 3x = 24 x = 8 Number is 84 Required number = 84 * 56/100 = 47.04
What should come in place of the question mark (?) in the following questions?
417/414Â Â = Â Â ?
The value of ‘x’ in the given below equation is.
0.5 Ì… + 0.7 Ì… + 0.9 Ì… + 0.3 Ì… = x
(0.09)Â -1.5Â = ?
Solve for x:
2(x + 1) × 4(x − 2) = 32
54 × 70 × 33 × 42 =
If √35 = 5.9 find the value of √(5/7)
If 100.9Â = 12 and ( 0.1)x = 120, then what is the value of x.
What is the value of x?
0.064 x 0.47 = 0.4x x (0.0256)2
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...Simplify:
(0.72 ÷ 0.12) − (3/5 × 2.5) + 7/8
(0.64)3/2 = ?
