Maths :
1.A car covers a distance of 200km in 2 hours 40 minutes, whereas a jeep covers the same distance in 2 hours. What is the ratio of their speed?
2.10001 – 101 =?
3.A number is greater than 3 but less than 8. Also the number is greater than 6 but less than 10. What is the number?
4.The sum of squares of two numbers is 80 and the square of difference between the two numbers is 36. Find the product of two numbers.
5.Mary and Jane bought a cake. The cake was cut into eights. If Mary ate half and Jane ate a quarter, how many slices are left.
Answers
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Given Distance = 200 km, Time = 2 hr 40 minutes = 2 + 40/60 = 8/3.
We know that Speed = Distance/Time
= 200/8/3
= 600/8
= 75.
Given Speed of jeep = 200/2
= 100.
ratio of speed = 75/100
= 3/4
= 3:4.
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