subex Company Numerical Ability Co-ordinate geometry

jitendra pays 1/6th of his salary on house rent.out of remaining he spends 2/5th on groceries.he incurs 2/5thof his expenditure of groceries on milk.he saves rs 500 after incurring 20%of his total salary on other miscellaneous expenditure.what is the monthly salary

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subex Other Question

Ravi and manish can do pieace of work in 16 and 20 days respectevey . how long it will take to finish the work if manish
replaced by sanjay after 2 days .Given sanjay and manish finish work togetherin 12days.

(a) 7.8 (b) 10.1 (c) 8 (d) 9.21
Test on three subjects Physics, Chemistry & Biology are to be conducted simultaneously the number of candidates for the tests are 68, 36 and 72 respectively. Candidates are to be seated in different rooms such that each room will have candidates of the same subject and the load on each invigilator be the same i.e. the number of candidates in each room should be the same what is the minimum number of rooms you need for the purpose.

a) 22
b) 30
c) 44
d) None of these