Advertisements
Advertisements
प्रश्न
Two numbers are in the ratio 4 : 7. If their L.C.M. is 168, find the numbers.
Advertisements
उत्तर
Given, Ratio in two numbers = 4:7
and their L.C.M. = 168
Let first number = 4x
and second number = 7x
Now, L.C.M. of 4x and 7x
= 4 × 7 × x = 28x
∴ 28x = 168
x = `168/28`
x = 6
∴ Required numbers = 4x and 7x = 4 x 6 = 24 and 7 x 6 = 42
APPEARS IN
संबंधित प्रश्न
The work done by (x – 2) men in (4x + 1) days and the work done by (4x + 1) men in (2x – 3) days are in the ratio 3 : 8. Find the value of x.
Find the duplicate ratio of the following :
`3 sqrt (2"a") : 2 sqrt (3"a")`
If `"x"/("b + c - a") =" y" /("c + a - b") = "z"/("a + b - c")` , then prove that each ratio is equal to the ratio of `("x + y+z")/("a + b + c")`
If `x/a = y/b = z/c` show that: `x^3/a^3 + y^3/b^3 + z^3/c^3 = (3xyz)/(abc)`.
Find the compounded ratio of: 4 : 5, 5 : 7 and 9 : 11
If `(3x + 5y)/(3x - 5y) = (7)/(3)` , Find x : y
Express the following ratio in the simplest form:
324 : 144
10 boys can dig a pitch in 12 hours. How long will 8 boys take to do it?
Ratio of 75 paise to ₹ 2 = _____________
A tea merchant blends two varieties of tea costing her Rs. 234 and Rs. 130 per kg in the ratio of their costs. If the weight of the mixture is 84 kg, then find the weight of each variety of tea.
