(a) Take Sarita's present age to be y years ) What will be her age 5 years from now? (ii) What was her age 3 years back? 3 (iii) Sarita's grandfather is 6 times her age. What is the age of her grandfather! yv) Grandmother is 2 years younger than grandfather. What is grandmother's (v) Sarita's father's age is 5 years more than 3 times Santa's age. What is her father's age? age?
Answers
Answer:
(i) y+5 (ii) y-3 (iii) 6y
Step-by-step explanation:
Sarita’s age aftyer 5 years from now = Sarita’s present age + 5
= (y + 5) years
(ii) Sarita’s age 3 years back = Sarita’s present age – 3
= (y – 3) years
(iii) Grandfather’s age = 6 × Sarita’s present age
= 6y years
(iv) Grandmother’s age = granfather’s present age – 2
= (6y -2) years
(v) Father’s age = 5 + 3 × Sarita’s present age
= (5 + 3y) years
(b) Length = 3 × Breadth – 4
l = (3b – 4) metres
(c) Length = 5 × Breadth
l = 5h cm
Breadth = 5 × length – 10
b = (5h – 10) cm
(d) The step at which Beena is = (step at which Meena is) + 8
= (s + 8)
The step at which Leena is = (step at which Meena is) – 7
= (s – 7)
Total steps = 4 × (step at which Meena is) – 10
= (4s – 10)
(e) Speed = v km / hr
Distance travelled in 5 hours = 5 × v
= 5v km
Total distance travelled between Daspur and Beespur = (5v + 20) km