Question

C. Solve the following questions. (Very short)
1. Express 133:77 in the simplest form.
2. Write three equivalent ratios 54/8.
3. Are 2,3,4,5 in proportion?
4. If 3,x,9,12 in proportion, find x.
5. A pen costs rupees 13. Find the cost of such 17 pens.​

Answer 1

ANSWER

1. FIRST FIND ITS LCM

THERE LCM IS 7

so divide 133 and 77 with 7=19/11

19:11 is the answer

3.no

4.X=3×12÷9=36÷9=4 ANSWER IS 4.

5. COST OF ONE PEN =$13

COST OF 17 PENS=13×17=221