Advertisements
Advertisements
प्रश्न
Solve: `(2"x")/3 - (3"x")/8 = 7/12`
Advertisements
उत्तर
`(2"x")/3 - (3"x")/8 = 7/12`
L.C.M. of 3 and 8 = 2 × 2 × 2 × 3 = 24
`therefore (2"x" xx 8)/(3 xx 8) - ("3x" xx 3)/(8 xx 3) = 7/12`
`= "16x"/24 - "9x"/24 = 7/12`
`= "16x"/24 - "9x"/24 = 7/12`
`= (16"x" - 9"x")/24 = 7/12`
`= "7x"/24 = 7/12`
`= "x" = (7 xx 24)/(12 xx 7) = 2`
∴ x = 2
APPEARS IN
संबंधित प्रश्न
Solve the following equation:
`(3"x")/("x" + 6) - "x"/("x" + 5) = 2`
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.
Six more than one-fourth of a number is two-fifth of the number. Find the number.
A man is 42 years old and his son is 12 years old. In how many years will the age of the son be half the age of the man at that time?
A man completed a trip of 136 km in 8 hours. Some part of the trip was covered at 15 km/hr and the remaining at 18 km/hr. Find the part of the trip covered at 18 km/hr.
Solve: `("9x" + 7)/2 - ("x" - ("x" - 2)/7) = 36`
The sum of two numbers is 405 and their ratio is 8 : 7. Find the numbers.
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.
Solve the following inequation
2a + 3 ≤ 13, where a is a whole number
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?
