Quantitative Aptitude - Arithmetic Ability Questions

Find out the odd word/letters/number pair from the given alternatives

If the three numbers in the ratio 3:2:5 be such that the sum of the squares is equal to 1862 then which number is the middle one.

If a+1b=1 and b+1c=1 , then the value of c+1a is

There are total 200 students in a school, of which 1/5th are boys. Find the number of girls in the school.

What is the equation of the line whose y-intercept is -3 and makes an angle of 45° with the positive x-axis?

P and Q are at a distance of 240 km from each other at 9:00 a.m. After 1 hour, P starts moving towards Q at a speed of 25 km/hr. At 11 a.m. Q startsmoving towards P at the speed of 18 km/hr. At what time (in p.m.) will they meet?

Three electronic devices make a beep after every 48 sec, 72 sec and 108 sec respectively. They beeped together at 10 a.m. The time when they will next make a beep together at the earliest is

Seven years ago, the age of Sahil was equal to the present age of Nihal. Sum of Sahil's age 5 year ago and Nihal's age 6 years later is 58 years. If Ruchi is 4 years elder to Sahil, then what will be Ruchi's age (in years) after 10 years?