Question

EXERCISE 7 (B)
e com o Rita's age and Ashu's apeis 25 Ritu is 12 years old write an equation to find
A number decreased by 4 is equal to -6 Find the number
times a number decreased by 3 equal 18 Find the number
Obit of a number is 9. Find the number
How old is Ramesh, if 10 years ago he was 25 years old
Apoor received three-fourths of all votes cast in the election for school president if he moved 176
votes, how many students voted ?
After gaining 15 kg, Nisha weighs 60 kg. What was her previous weight?
A pole x metres long is broken into two parts. One part is 5 metres long
What is the length of the other part
() If the other part is 6 metres long, write an equation and use it to find the value of
The teacher tells the class that the highest marks obtained by a student in her class is three times the
lowest marks minus seven. If the highest marks are 86. find the lowest marks
Benny thinks of a number subtracts 18 from it and divides the difference by 3. The result is 4 Whats
the number
11. Mr. Grover is three times as old as his son and the sum of their ages is 4. How old is each
12. Somil is 48 years old. He is 7 years less than 5 times his daughter's age. What is his daughter
A number is 6 more than two times another number. The sum of the two numbers 24 Find the number
Four times Sonu's age decreased by 3 is equal to 3 times his age increased by 7. How old is om
15. Find three consecutive numbers whose sum is 81
Multiple Choice Questions (MCQs)
(b)
1. If you could divide Rina's age (o) by 8 and take
19. The sum of the angle of trades
the regler 15. - 20
will represent this situation
the value of
(8) 2
(c)
2 more years, you get 3. Which equation
(b) X-2-3
23
17. One-fourth of a number plus les 4 The
2-
(b) 12
High Order Thinking Skills (HOTS)
20. For her mobile phone ni Divya 145
per month and use for each
she talks over the allowed number of minus
in the monthly plan She received a b
18. or a number is the late number
she use her phone beyond the lowed
COMPOSITE MATHEMATICS​

Answer 1

Answer:

Particles are smaller than 1 nm ,they are not visible to naked eye. 3. They do not scatter a beam of light. ... Solute particles cannot be separated by the process of filtration and sedimentation.

Answer 2

Answer:

sorry I didn't know the answer