Question
Statements: Some mats are bedsheets. All
bedsheets are chairs. Some chairs are desks. Conclusions: I. Some desks are bedsheets. II. Some chairs are mats. III. Some mats are desks. In each question below are given three statements followed by three conclusions numbered I, II and III. You have to take the two given statements to be true even if they seem to be at variance with commonly known facts and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.ÂSolution
A + I = No conclusion. Hence, conclusion I and III will not follow. Some mats are bedsheets (I) + All bedsheets are chairs (A) = Some mats are chairs (I) ⇒ conversion ⇒ Some chairs are mats (I). Hence, conclusion II will follow. Alternate method:
Conclusion I: Not necessarily true based on given venn diagram. Conclusion II: It is true based on given venn diagram. Conclusion III: Not necessarily true based on given venn diagram.
Find the LCM of 36, 45, 60, 80.
The least number which when divided by 5, 10, 12 and 15 leave zero remainder in each case and when divided by 18 leaves a remainder of 6 is:
The HCF of two numbers is 7. Which of the following can never be their LCM?
The HCF of two numbers 110 and 1980 is:
A sum was lent at simple interest for 2.5 years. If the rate had been 7.5% more, the interest would have been Rs. 375 extra. What was the amount lent?
A man deposits Rs. 25,000 at a simple interest rate of 8% per year. What amount will he receive after 5 years?
The LCM of two numbers is 432 and their HCF is 55. If one of the numbers is 132, the other number is:
The least number which when divided by 6, 8, 9 and 12 leave zero remainder in each case and when divided by 13 leaves a remainder of 7 is:
The HCF of two numbers is 6 and their LCM is 96. If one of the numbers is 24, find the other number.
LCM of 21 5 , 21 10 and 21 15 is?
(1). 21 5
(2). 21 15
(3).2130