A money bag contains one rupee, 5 rupee and 10 rupee coins in the ratio of 3 : 5 : 7 respectively. If the total amount in the bag is Rs 980, then find the number of coins of Rs 10. Optionsa) 68b) 69c) 71d) 70 Solution As per question Money bag contains = 1 […]
Without doing the actual division, find the remainder when 28735429 is divided by 9. Optionsa) 8b) 9c) 4d) 2 Solution As per questionThe sum of digits of a number which is divisible by 9 will also be divisible by 92 + 8 + 7 + 3 + 5 + 4 + 2 + 9 /
Without doing the actual division, find the remainder when 28735429 is divided by 9. Read More »
At present, A is thrice as old as B. C is 5 years elder than B. The sum of the ages of A, B, C is 75 years. The ratio of the age of B five years ago to the age of A three years from now is: Optionsa) 1 : 5b) 4 : 7c) 1 :
Simplify Optionsa) 25.5b) 28.7c) 23.6d) 30.2 Solution As per questionLet thea = 8.3b = 9.2c = 6.1a3+b3+c3-3abc = (a+b+c)(a2+b2+c2-ab-bc-ca) = (a+b+c)Put value in (a+b+c)8.3+9.2+6.1 = 23.6 Answer: c) 23.6
Simplify(8.3)3+(9.2)3+(6.1)3−3×8.3×9.2×6.1/(8.3)2+(9.2)2+(6.1)2−8.3×9.2−9.2×6.1×8.3 Read More »
The radii of the two cones are in the ratio of 2 : 5 and their volumes are in the ratio of 3 : 5. What is the ratio of their heights? Optionsa) 4 : 11b) 15 : 4c) 11 : 15d) 13 : 11 Solution As per questionTwo cones are in the ratio of 2
Which of the following is the largest 5 – digit number divisible by 47? Optionsa) 98888b) 99969c) 10000d) 99999 Solution As per questionLargest 5 – digit number = 99999Divide this number by 47 99,999÷47 = 2127.65Quotient = 2127Multiply of the quotient by 472127×47 = 99,969Check if 99,969 is divisible by 4799,969÷47 = 2127 Ans: b) 99969
Which of the following is the largest 5 – digit number divisible by 47? Read More »
A bus travels 1/3 of distance initially at a speed of 40 km/h, the next 1/3 of the distance 50km/h, and the final 1/3 of the distance at 60 km/h. Find the average speed of the bus for the entire journey. (Rounded off to two decimal places) Optionsa) 48.65 km/hb) 46.85 km/hc) 54.13 km/hd) 51.43 km/h Solution Let the Total Distance
If = 12, then find the value of Optionsa) 142b) 140c) 146d) 144 Solution As per question = 12Square both side = (12)2 = 144 = 144 = 144 – 2 = 142 Answer: 142
If a+1/a = 12, then find the value of a2+1/a2 Read More »
If a right circular cone of height 24 cm has a volume of 1232 cm3 ,then the total surface area of the cone is (use π=22/7) Optionsa) 704 cm2b) 806 cm2c) 904 cm2d) 608 cm2 Solution As per questionVolume of cone = Total curved surface area = πrl+πr2l2 = r2 + h2r = radiush = heightl
Who obtained 79% marks in all the subjects taken together? Optionsa) Rohitb) Sumitc) Mohitd) Tarun Solution As per questionTarun marks = 65 + 80 + 75 + 85 + 90 = 395Total marks = 500Tarun marks % = = 79 % Answer: d) Tarun