Advertisements
Advertisements
प्रश्न
The sum of two numbers is 405 and their ratio is 8 : 7. Find the numbers.
Advertisements
उत्तर
Let the first number = x
and the second number = 7
According to the question, x + y = 405 ……..(i)
and the numbers are in the ratio 8 : 7
According to the question,
The sum of the two numbers is 405
Now, substitute the value of x in equation (i)
8x + 7x = 405
15x = 405
`x = 405/15`
x = 27
Hence, First number = 8x = 27 × 8 = 216
Second number = 7x = 27 × 7 = 189
APPEARS IN
संबंधित प्रश्न
Solve:
`5x − (4x + (5x - 4)/7) = (4x - 14)/3`
A’s salary is same as 4 times B’s salary. If together they earn Rs.3,750 a month, find the salary of each.
A rectangle’s length is 5 cm less than twice its width. If the length is decreased by 5 cm and width is increased by 2 cm; the perimeter of the resulting rectangle will be 74 cm. Find the length and width of the origi¬nal rectangle.
The difference of two numbers is 3 and the difference of their squares is 69. Find the numbers.
Three consecutive whole numbers are such that if they be divided by 5, 3 and 4 respectively; the sum of the quotients is 40. Find the numbers.
Solve:
13(x − 4) - 3(x − 9) − 5(x + 4) = 0
Solve: `("9x" + 7)/2 - ("x" - ("x" - 2)/7) = 36`
After 12 years, I shall be 3 times as old as 1 was 4 years ago. Find my present age.
The sum of two numbers is 4500. If 10% of one number is 12.5% of the other, find the numbers.
Solve the following inequation
2a + 3 ≤ 13, where a is a whole number
