Question

Exercise 6.2 9 chairs can be bought for * 1548. How many chairs can be bought for * 4300 ? 2. A plastic tube of 43.2 cm long weighs 864 grams. If a piece of 3.6 cm long is cut from it, what will be the weight of the part left ? 3. If cost of 30 shirts is 23765. How many shirts can be had with * 2886.50 ? Rahul types 2520 words in one hour. How many words he will type in one minute ? 3. If 21 cows eat as much as 15 oxen, how many cows will eat as much as 25 oxen ? 6. A many can earn 51500 in 5 months then find : (i) In how many months will he earn 144200 ? (ii) How much will he earn is 3 months ? If 10 men can dig a trench in 12 days, how long will 4 men take? 8. If 7 men can do a piece of work in 9 days, how long would 21 men take to do it ? If 36 men can do a piece of work in 25 days. In how many days will 15 men do it ? 10. A car runs 513 km on 18 litres of diesel. How many kilometres can it run on 34 litres of diesel ? er HIGHER ORDER THINKING SKILLS QUESTIONS HOTS 1. A train travels between two stations X and Y, a distance of 120 km in 80 minutes. It passes through a station Z, 1 hour after leaving X, what is the distance between Y and Z?​

Answer 1

Let x be table and y be chair

Equation:

2x+3y=3500 ______(i)

3x+2y=4000 _____ (ii)

Solving eqn (i)

2x+3y=3500

Can as well be written as

2x=3500–3y

x=[3500–3y]÷2 ____ (iii)

Using equation (iii) to solve equation (iii)

3x+2y=4000

Since we now know x,

3([3500–3y]÷2)+2y=4000

By solving the equation, will have,

10500–9y+4y=8000

Or,

9y-4y=10500–8000

⇒ 5y=2500

y=500

Hence,taking any of the 3 equations can give us the value of x

3x+2y=4000

3x+(2×500)=4000

3x+1000=4000

3x=4000–1000

3x=3000

x=1000

Thus,a table cost Rs.1000

Answer 2

Answer:

Step-by-step explanation:hey