Advertisements
Advertisements
प्रश्न
If a : b = 3 : 8, find the value of `(4a + 3b)/(6a - b)`.
Advertisements
उत्तर
Given, a : b = 3 : 8
`=> a/b = 3/8`
`(4a + 3b)/(6a - b) = (4(a/b) + 3)/(6(a/b) - 1)` ...(Dividing each term by b)
= `(4(3/8) + 3)/(6(3/8) - 1)`
= `(3/2 + 3)/(9/4 - 1)`
= `(9/2)/(5/4)`
= `18/5`
संबंधित प्रश्न
Find the triplicate ratio of the following :
`2 sqrt 5 : 5 sqrt 2`
₹120 is to be divided between Hari and Gopi in the ratio 5 : 3. How much does each get?
Find the ratio of the first quantity to the second.
25 beads, 40 beads
If y (3x – y) : x (4x + y) = 5 : 12. Find (x² + y²) : (x + y)².
The sides of a triangle are in the ratio 7 : 5 : 3 and its perimeter is 30 cm. Find the lengths of sides.
The ratio of the number of boys to the number of girls in a school of 560 pupils is 5 : 3. If 10 new boys are admitted, find how many new girls may be admitted so that the ratio of the number of boys to the number of girls may change to 3 : 2.
In class X of a school, the ratio of the number of boys to that of the girls is 4 : 3. If there were 20 more boys and 12 less girls, then the ratio would have been 2 : 1, How many students were there in the class?
Write the following ratio in the simplest form:
1 L 35 mL : 270 mL
Find the ratio of the price of a pencil to that of a ball pen if pencils cost Rs 96 per score and ball pens cost Rs 50.40 per dozen.
`3/8 = 15/40`
