PSA_PRACTICE_QNR50. Let us assume, the percentage of liquid A is ‘x’ in the resultant mixture. By weight, liquid A makes up 8 percent of solution R and 18 percent of solution S. If 3 grams of solution R are mixed… Continue Reading
PSA_PRACTICE_QNR49. A certain store sells two types of pens: one type for $2 per pen and the other type for $3 per pen. If a customer can spend up to $25 to buy pens at the store and there is… Continue Reading
PSA_PRACTICE_QNR48. A committee of seven members is to be formed from a group of 11 members. The probability that a certain married couple will either serve together or not at all is? Ans: Method 1: Married couple serving in the… Continue Reading
PSA_PRACTICE_QNR47. Find the number of digits of expression in 6^3×4^11×5^5.
PSA_PRACTICE_QNR46. Thirty(30)cows were found to produce 650 kg of manure containing 10% Nitrogen in one week (7 days). You are required to help traditional smallholder farmers on their application requirement for 2 hectares of land planted with maize. how long… Continue Reading
PSA_PRACTICE_QNR45.How many unique rectangles with integral sides can be formed whose area is 2014 square units?
PSA_PRACTICE_QNR44. The LCM of two integers a and b is 4,200 and their GCF is 100.If neither a nor b is multiple of the other,find a+b.
PSA_PRACTICE_QNR43. What is the sum of the digits of (10^2014)-36?
PSA_PRACTICE_QNR42. Find a three digit number such that the hundreds digit and the unit digit are the same prime numbers,the sum of all the digit is 12 and the number is divisible by 7.
PSA_PRACTICE_QNR41. Julie Ann has some loom bands to give to her friends.If she gives 6 or 8 loom bands to each friend,she has no left over.If she gives 9 to each friend,she has 3 left ove.Find the smallest number of… Continue Reading
PSA_PRACTICE_QNR40. When charging $375 for a catering service they make 25 sales. The owner estimates that if they decrease the price by $10 they will make 2 additional sales. Is the relationship between sales and price linear? What is the… Continue Reading
PSA_PRACTICE_QNR39. Insert operations (+, -, ÷, x) and grouping symbols to make the following two equations true: [One operator to be used only once.] a) 3 _ 3 _ 3 _ 3 _ 3=1 b) 3 _ 3 _ 3… Continue Reading
PSA_PRACTICE_QNR35. Fresh grapes contain 80% water by weight while dried grapes contain 10% water by weight. What will be the weight of dry grapes available from 30 kg of fresh grapes? A. 6 kg B. 7 kg C. 19/3 kg… Continue Reading