Elitmus Exam Numerical Ability Ratio and Proportion

Karju normally took 12 hours to drive from city A to city B. Today his car developed some technical glitch at point C, between A and B. After fixing the glitch in 15 min, he drove at a speed 20% more than the normal speed. He reached the destination 15 minutes earlier than the normal time. The ratio of the distances AC and CB is

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Elitmus Other Question

if r>x>0 and r+x=121, then what is the probability that 1/(1/r + 1/x) is a whole number . given that r and x both are whole number...

a) 1/10 b. 1/12 c. 1/11 d.) dont remember
how many different sums can be formed by selecting either 5 rupee,1 rupee,50 paisa,10 paisa,3 paisa,2 paisa and 1paisa,,