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A horse chases a pony 3 hours after the pony runs. Horse takes 4 hours to reach the pony. If the average speed of the horse is 35 kmph, what s the average speed of the pony?

Read Solution (Total 4)

as the horse avg speed is 35 and it takes 4 hr to reach to pony the distance will be 140 . and pony takes 7 hr to complete this distance so d ans will be 140/7 i.e.
20kmph
14 years agoHelpfull: Yes(50) No(3)

in 7hr pony covers d km whereas horse in 4hrs wid 35kmph covers d km.
therefore, 4*35=7* speed of pony
ans would be 20kmph
14 years agoHelpfull: Yes(8) No(1)
20kmph
14 years agoHelpfull: Yes(3) No(1)
35*4(h)=s*7(p) => s=20 km/h
14 years agoHelpfull: Yes(2) No(1)

TCS Other Question

A sheet of paper has statements numbered from 1 to 40. For each value of n from 1 to 40,
statement n says "At least and of the statements on this sheet are true." Which statements are true and which are false?

a)The even numbered statements are true and the odd numbered are false.
b)The first 26 statements are false and the rest are true.
c)The first 13 statements are true and the rest are false.
d)The odd numbered statements are true and the even numbered are false.

Ques 7: Alok and Bhanu play the following min-max game. Given the expression N = 15 + X*(Y – Z) Where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu would like to minimize it. Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X, Y or Z). Alok then chooses the next value and Bhanu, the variable to substitute the value. Finally Alok proposes the value for the remaining variable. Assuming both play to their optimal strategies, the value of N at the end of the game would be?

Note: For this type of questions:
x+y-z=11
x-y-z=2
x*(y+z)=18
wht shud be the approach to do such type of prob??