Question

6. Sanjay purchased 7 kg sugar for Rs48. Find the cost of 1kg sugar
7. Compare the following numbers: 1.8x1015: 1.5x1020
8. If Z=-10, find the value of Z2 +4(z+5).
9. Find the cost of 25.4m of cloth, if cost of Im cloth is Rs 50.50.
10. Find the circumference of a circular object of diameter 20cm. (use 1= 3.14)
11. Verify the following: 10x{8-(-3)} = 10×8-10®(-3).
12. Simplify: 2+1
13. Simplify and find value 10-3(b+3)+4(6-3) when b =-3.
14. Express the following as product of power : 3600.
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Answer 1

6 ⁶/7

Step-by-step explanation:

If 7 kg sugar is rs 48

then 1 kg = 48 /7

=6.85714

Answer 2

Answer:

hope it helps

Step-by-step explanation:

z=10 given

z*2+4(z+5)

10*2+4(10+5)

20+40+20=80