Question
Riya completes 40% of a task in 24 days, while Siya
finishes 30% of the same task in 27 days. Riya begins the task alone and stops after 30 days. How long will Siya take to finish the rest?Solution
ATQ,
Time taken by Riya to complete whole work = (24 / 0.40) = 60 days
Time taken by Siya to complete whole work = (27 / 0.30) = 90 days
Let total work = LCM of 60 and 90 = 180 units
Efficiency of Riya = 180 / 60 = 3 units/day
Efficiency of Siya = 180 / 90 = 2 units/day
Work done by Riya in 30 days = 30 Ă— 3 = 90 units
Remaining work = 180 - 90 = 90 units
Time taken by Siya = 90 / 2 = 45 days
Which is the precursor of ethylene?
Botanical name of jowar is:
Which physiological disorder in cotton is caused by excessive nitrogen and results in vigorous vegetative growth but poor boll formation?
Which floral mechanism helps promote autogamy (self-pollination) in lettuce?
Two main components of sales promotion are ______.
Which soil-forming factor is classified as “active”?
The main host tree of Eri Silkworm isÂ
Saline soil having
(A) pH<8.5
(B) E.C.>4
(C) ESP<15
(D) Physical condition - Flocculated
Choose the correct answer from the options given below:
Which statement is true?
Cotton and pigeon pea are:
Relevant for Exams:
