Q1. The perimeter of 4 squares is 24 cm, 32 cm, 40 cm, 48 cm respectively. What will be the area of the square having perimeter equal to sum of edges of 4 squares? (in sq.cm.)
Q2. A sum of Rs. x was invested at 10% simple interest for 3 years. If the same sum was invested at 4% more for same period, then it would have fetched Rs. 120 more. Find the value of 5x. (in Rs.)
Q3. A man & a woman receives Rs. 1000 for work of 8 days. If a man is 4 times efficient than a woman. Find the daily wage received by a woman.
Q4. In an examination, Karan got 25% more marks than Sanjay who got 20% less marks than Mahesh who got 30% more marks than Anurag. Marks obtained by Karan are what percent more than marks obtained by Anurag?
Q5. In a class, the ratio of passed students to failed students is 9:1. If 6 more students have failed among the total students mentioned of the same class, then this ratio would be 21 : 4. Find the total no. of students in the class.
Q6. A sum of Rs 1400 becomes Rs 2408 in 8 yrs at simple interest, then find the rate of interest for last 4 yrs,if the interest rate for 1st 4 yrs is 12% per annum ?
(a) 8 %
(b) 10 %
(d) 4 %
(e) None of these
Q7. A work is completed by P and Q together in 15 days. When a third person R joined them, then the work is completed in 9 days. In how many days, the work is completed by R alone? (in days)
Q8.Ravi and Maanik started running simultaneously towards each other with speed in the ratio of 3:4. If the initial seperation between is 4.2 km and they meet in 3 min, then what is the difference between their speeds?
(a) 15 km/hr
(b) 12 km/hr
(c) 18 km/hr
(d) 10 km/hr
(e) 9 km/hr
Q9. A tank is normally filled in 15 hr but due to a leak in it, it takes 3 hrs more to be filled. if the tank is completely filled, then the leak will empty it in ?(in hrs)
Q10. Suman is 25 yrs elder to his son. If 7 yrs hence, the ratio of ages of suman and his son will be 2:1, then how many years back from present suman’s son was born?
(a) 20 yrs
(b) 24 yrs
(c) 15 yrs
(d) 18 yrs
(e) None of these