Question

17. Case Study based - 1
Rohan and Jeevan are playing with marbles.
They together have 45 marbles. Both of them
lost 5 marbles each, and the product of the
number of marbles they have now is 124.
a) If Rohan had x marbles, then number of marbles Jeevan had:
(i) x - 45 (ii) 45 - x (iii) 45x (iv) x - 5
b) Number of marbles left with Jeevan, when he lost 5 marbles:
(i) x - 45 (ii) 45 - x (iii) 40 - x (iv) x - 40
c)The quadratic equation related to the given problem is:
(i) x2 – 45x – 324 = 0
(ii) x2 - 45x + 324 = 0
(iii) x² + 45x + 324 = 0
(iv) --x2 - 45x + 324 = 0
d) Number of marbles Rohan had:
(i) 10
(ii) 30
(iii) 35
(iv) 36
e) If Rohan had 9 marbles, then number of marbles Jeevan had:
(1) 10
(ii) 9
(iii) 36
(iv)35​

Answer 1

Answer:

A). 45 - X

B). 40 - X

C ). x2 - 45x + 324 = 0

D). no. of marbles rohan have = 18 , 27.

E). 36