Advertisements
Advertisements
Question
9b – 4b + 3b = 16
Solution
9b – 4b + 3b = 16
⇒ (9 - 4 + 3)b = 16
⇒ 8b = 16
⇒ b = `16/8 = 2`
∴ b = 2
APPEARS IN
RELATED QUESTIONS
Solve the following equation:
3(x + 1) = 12 + 4(x - 1)
Solve the following equation:
5x – 1 = 74
Solve the following equation:
9y -7 = 20
0.4x – 1.2 = 0.3x + 0.6
6(x+4) = 36
Solve the following equations for the unknown: 3x + 8 = 35
Solve the following equations for the unknown: 8x - 21 = 3x - 11
Solve the following equations for the unknown: `(1)/(5) = (3sqrt(x))/(3)`
Solve the following equations: a(x - 2a) +b (x - 2b) = 4ab
In a two digit number, the ratio of the digits at the unit's place and the ten's place is 3:2. If the digits are reversed, the resulting number is 27 more than the original number. Find the two digit number.
A steamer goes in downstream from one port to another in 4hours. It covers the same distance in upstream in 5 hours. If the speed of the stream be 2 km/h, find the distance between the two ports.
A tap can fill a tank in 12 hours while another tap can fill the same tank in x hours. Both the taps if opened together can fill the tank in 6 hours and 40 minutes. Find the time the second tap will take to fill the tank.
The sum of two numbers is 99. If one number is 20% more than the others, find the two 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 ages.
The difference between the ages of two brothers is 10 years, and 15 years ago their ages were in the ratio 2:1. Find the ratio of their ages 15 years hence.
A man is double his son's age. Twenty years ago, he was six times his son's age. Find the present age of the father and the son.
The length of a room exceeds its breadth by 3 m. If both the length and breadth, are increased by 1m, then the area of the room is increased by 18 cm2. Find the length and breadth of the room.
What number decreased by 12% of itself gives 1584?
In a factory male workers are paid one and a half times more than their female counterparts for each hour of work. In a particular week a husband and wife team worked for a total of 60 hours with the husband working twice as much as his wife. The total amount earned by both is Rs 960. If the husband's earning is 4 times that of his wife, find the number of hours each worked.
