Advertisements
Advertisements
Question
The sum of two numbers is 405 and their ratio is 8 : 7. Find the numbers.
Advertisements
Solution
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
RELATED QUESTIONS
Solve:
`5x − (4x + (5x - 4)/7) = (4x - 14)/3`
28 is 12 less than 4 times a number. Find the number.
Fifteen more than 3 times Neetu’s age is the same as 4 times her age. How old is she ?
Six more than one-fourth of a number is two-fifth of the number. Find the number.
Solve: `"x" + 7 - "8x"/3 = "17x"/6 - "5x"/8`
Solve: `(3"x" - 2)/4 - ("2x" + 3)/3 = 2/3 - "x"`
Solve: `(3"x" - 2)/3 + (2"x" + 3)/2 = "x" + 7/6`
The ages of A and B are in the ratio 7 : 5. Ten years hence, the ratio of their ages will be 9 : 7. Find their present ages.
Given that x ≥ y. Fill in the blank with suitable inequality sign
x – y `square` 0
An artist can spend any amount between ₹ 80 to ₹ 200 on brushes. If cost of each brush is ₹ 5 and there are 6 brushes in each packet, then how many packets of brush can the artist buy?
