Q1. A boat can row 10 km in 5/6th of an hour in down-stream and12 km in upstream in 90 minutes. Find the speed of stream and speed of boat in still water. (in kmph)
(a) 12, 2
(c) 4, 8
Q2.A bag contains 4 white and 6 black balls; another bag contains 4 white and 4 black balls. From any one of these bags a single draw of two balls is made. Find the probability that one of them would be white and other black ball.
(d)None of these
Q3. In a stockpile of products produced by two machines M1 & M2, 40% was manufactured by M1. 10% of the products of M1 are defective & 95% of products of M2 are not defective. What is the % of defective products in the stockpile?
Q4. Two varieties of wheat is mixed in the ratio of 2:3 by weight. The price of the mixture is Rs.12/kg and the price of the variety having lower weight is Rs 10/kg. Find the price per kg of the other variety.(in Rs)
Directions (5-10): Study the line chart given below and answer the following questions.
Line chart shows quantity of different product produced (in ‘000) by company ‘X’ in different years.
Q5.Find the difference between the average of product A produced in 2015 and 2017 and average of product B produced in 2016 and 2018?
Q6.The product C produced in 2015 and 2018 together is approximately what percent of product B produced in 2016 and 2017 together?
Q7.In 2019 if production of product A & B shows an increment of 20% and 25% respectively in their production while production of product C decreased by 10% with respect to previous year, then find the ratio of product A & B produced together in 2019 to that of product C produced in 2019.
Q8.The product A and B produced in 2015,2016 & 2017 together is what percent more/less product C produced in 2017 & 2018 together?
Q9.If the product B produced in 2016 remains 15% unsold and 95% sold in 2017 as well as in 2018, then find the ratio of product B sold in 2016 & 2017 together to that of sold in 2018? (total produced= sold+ unsold)
Q10.After 2015, From the given product (A,B,C) which product shows maximum % increase /decrease in their production as compared to previous year and in which year?
(a) Product B,2017
(b)Product A, 2016
(c) Product C,2018
(e)product C, 2017