Question
There are three persons 'Amit', 'Bhuvan' and 'Cheetan'
such that 7 times the present age of 'Amit' is equal to 9 times the present age of 'Bhuvan' while 5 times the present age of 'Bhuvan' is equal 3 times the present age of 'Cheetan'. If the present ages of all three are integers and the age of 'Dheeraj' after 13 years will be equal to the sum of the minimum possible present ages of 'Amit', 'Bhuvan' and 'Cheetan', together, then find the present age of 'Dheeraj'.Solution
Let the present ages of 'Amit', 'Bhuvan' and 'Cheetan' be 'x' years, 'y' years and 'z' years respectively According to the question, 7x = 9y Or, x:y = 9:7 = 27:21 Also, 5y = 3z Or, y:z = 3:5 = 21:35 Let 'x' and 'y' be 27a and 21a, respectively Therefore, 'z' = 21a X (35/21) = 35a Therefore, x:y:z = 27:21:35 Therefore, age of 'Dheeraj' 13 years hence from now = 27 + 21 + 35 = 83 years Therefore, required age = 83 - 13 = 70 years
157 + 256 β 88 Γ· 8 Γ 4 = 117
If βΓ·β means β-β, β-β mean β+β, β+β means βΓβ and βΓβ means βΓ·β, compute the value of the expression:
130 Γ ...
Which two signs should be interchanged to make the given equation correct?
8 β 26 + 15 Γ 18 Γ· 6 = 220
Select the correct combination of the mathematical signs to replace the β@β symbols in the below equation and thereby balance it:
63@9@4@40@1...
How many meaningful four-letter words can be formed using the 1st, 3rd, 7th, and 8th letters of the word 'PERIPHERAL'?
A shopkeeper sells rice in such a way that the selling price of 950 gm is the same as the cost price of one kilogram. Find his gain percent.
If in a certain code language β+β represents βΓβ, βββ represents β+β, βΓβ represents βΓ·β and βΓ·β represents βββ....
If 'A' stands for '-', 'B' stands for 'Γ', 'C' stands for '+', and 'D' stands for 'Γ·', then what is the value of the following expression.
45 D...
Which signs should be interchanged to make the given equation correct.
Β 51Β Γ·Β 3 + 17 x 14 - 2 = 6
- Which two signs are to be interchanged to make the given equation correct?
132 + 14 Γ· 11 - 84 X 72 = 156