You have a budget of Rs. 4000 and would like to purchase LPG cylinders from a local seller who charges Rs. 50 per cylinder. The seller has a subsidy scheme by which if you return the empty cylinder purchased from him, you will get a refund of Rs. 20 per cylinder. You cannot borrow money from anyone. The maximum number of cylinders you can purchase is
1st cylinder = Rs.50, and after that we can have each cylinder of Rs. 30 (We can return the old one). That is 50 + 30x <= 4000 X<=131.67 X= 131 Since X is for remaining cylinders, but we also bought 1st cylinder, hence total cylinders = 132.
(7/4×18/21)+ (51/7× 28/17) + (25/2 × 48/10) =?
0.3 × 0.2 + 0.4 × 0.3 + ? = 413.18
(64/25)? × (125/512)?-1 = 5/8
5.5 × 3.2 × 2.3 = ?
4.7 × 3.5 + 4.2 × 4.5 = 22.5 × 3.5 - ?
5760 ÷ 45 × 15 = ?
{(700 ÷ 20) × 40} – 30 × 18 = ?% of 1000
36 x 3.6 ÷ 0.5 ÷ ? = 64
432 ÷ ? × 2552 ÷ 44 = 2088
(3/7 )Of 3360 ÷ 240 + 30 = (?)²