The ratio of incomes of C and D is 3:4.the ratio of their expenditures is 4:5. Find the ratio of their savings if the savings of C is one fourths of his income?

Is there a shortcut to find out the number of numbers divisible by a certain number within a certain range? eg. Find the number of numbers divisible by 7 within the range 100<x<200

The approach taken is that the limiting factor in both 35^6 and the 21^12 is 7. On calculating we will see that 42! has highest power of 7 as 6.And 76! has highest power of 7 as 11 but 77 will have highest power of 7 as 12.so we need to discard 77.Therefore total number of value of n possible =76-42+1=35.Sorry I mistakenly marked 39.Can you please tell what is the ans?

The number will be of the form 44k+13. Put k=0, rem is 13 put k=1, rem is 24 put k=2, rem=2 put k=3, rem=13 put k=4,rem=24...so cycle following therefore sum of distinct rems=2+24+13=39....is this the ans?

The method which i use is for this case..100<x<200 100/7=rem(2)...ie 98 divivisible by 7...so in 100 to 200 range lowest no divisible by 100=98+7=105 200/7=rem(4)...i.e. 196 is the largest within 200 to be divisible by 7...so now do highest-lowest/7=196-105/7=91/7=13(ans)

Prime nos are of the form 6k+1 and 6k-1.now in this ques....24q+r can be written as 6*4q+r... and by hit n trial take r=7 from 1st option...so 6*4q+7=6*4q+6+1=6(4q+1)+1....therefore it can be written in the form 6k+1...where k in this case is 4q+1.but for 8,9 and 10...you are getting the nos as 6(4q+1)+2,6(4q+1)+3,6(4q+1)+4...which are not in the form 6k+1...so ans is 7 ....wutz the actual answer???

A and B start running simultaneously on a circular track from point O in same direction.If ratio of speeds is 6:1respectively,then how many times is A ahead of B by a quarter of the length of the track before they meet at O for the first time?

SAI MAHESH JNTUA COLLEGE Today is Thursday. B is speaking truth today that he told a lie yesterday.( because B speaks tells lie on Wednesday) C is telling a lie today that he has told a lie yesterday ( because C speaks truth on Wednesday)

. Alok and Bhanu play the following min-max game. Given the expression

N = 9 + X + Y – Z

Where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu

would like to minimize it. Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X, Y or Z). Alok then chooses the next value and Bhanu, the variable to substitute the value. Finally Alok proposes the value for the remaining variable. Assuming both play to their optimal strategies, the value of N at the end of the game would be

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