Q1. In a bag, there are 20 balls of three different color i.e. red, green and black. Ratio of number of red balls to that of green balls is 2: 3. If the probability of choosing a black ball from the bag is 0.25 then, find the probability of choosing a red and a green ball from the bag if the ball chosen is not replaced.
(a) 5/19
(b) 26/95
(c) 24/95
(d) 27/95
(e) None of these
Q4. A shopkeeper allows two successive discounts of 15% and 10% on marked price of an article and customer also managed to get additional 10% discount on discounted price and in this way, he gets an additional discount of Rs.459. Find the price at which customer bought the article?
(a) Rs. 4193
(b) Rs. 4281
(c) Rs. 4277
(d) Rs. 4131
(e) Rs. 4099
Q5. Amount invested by C is Rs 4000 more than that of A and after 9 months, A and C both withdrew their whole amount and B joined the business with Rs. 24,000. If at the end of year, ratio of profit share of A to that of C is 2:3 then, find profit share by B out of total profit of Rs 14000?
(a) Rs. 3600
(b) Rs. 4000
(c) Rs. 4400
(d) Rs. 3200
(e) Rs. 4000
Q6. Train A travelling at the speed of 135 kmph overtook train B, which travelling in the same direction in 12 sec. The length of train A is two times of train B. If train B travels at twice of its speed, then train A would have taken 24 sec, then find the length of train B.
(a) 200 meter
(b) 150 meter
(c) 75 meter
(d) 100 meter
(e) 135 meter
Q9. 2k years ago, the ratio of age of A and B is 6 :11. The ratio of their ages was 3:7, 5k years ago. If 3k years later, the sum of their ages will be 98 years, then find the difference between their present ages.
(a) 40 years
(b) 25 years
(c) 80 years
(d) 70 years
(e) 20 years
Q10. Two friends Sanjay and Praveen bought two cars. Sanjay bought from store P where he get 25% discount and Praveen bought from store Q where he get two successive discount of d% and 10%. The market price of both cars on both stores is same. Sanjay bought the car at Rs 2,40,000. If Praveen paid Rs 4800 more than Sanjay, find the discount ‘d’?
(a) 18%
(b) 20%
(c) 25%
(d) 15%
(e) 12.5%
Solutions