1, 5 & 7 Answer ASAP PLSSS
Answers
sol:-1
12 1/2 = 25/2
Cost of 25/2 litre of oil = Rs.612 1/2 = 1225/2
Cost of 1 litre of oil = 1225
2
25
2
Cost of 1 litre of oil =1225 ×2
2 25
= 1225/25 = 49
.:Cost of 1 litre of oil is Rs.49
sol:-2
given :-
The 1st number is = 4/5
let the other number be x
product of two numbers equals to 1 1/5=6/5
x × 4/5= 6/5
x= 6/5/4/5
x= 6/5×5/4
x= 6/4 = 3/2
Sol3:-
The length of the rectangular field = 5/2 = l
Let the breadth of the rectangle area be b.
The area of the rectangle = 16/9m²
We know, Area of rectangle = l*b
16/9m²=5/2 m * b
b = 16/9/5/2 = 16/9m²*2/5m = 32/45m.
Sol4
32/5 = 6*2/5
Cost of 32/5 litre of milk = Rs.107 *1/5 = Rs.536/5
Cost of 1 litre of milk = 536
5
32
5
Cost of 1 litre of oil =536 ×5
5 ×32
= 16 and 3/4
.:Cost of 1 litre of oil is Rs 16 3/4.
Sol5:-
49 1/2 = 99/2
length of the rope = 99/2 m
number of faces rope is cut into = 18
the length of each piece= 99/2 /18 = 99/2× 1/18 = 2 3/4 m = 11/4 m.
the cost of each ticket = 61 1/2 = 123 /2.
total contribution of the friends for tickets= 676and 1/2 = 1353/2
number of friends are= 1353/2 /123/2= 1153/2*2/123 = 1353/123 = 11
therefore the number of friends are 11.
hope it helps ☺️