a student got 70% in one subject,80% in other.to get overall
75% how much he should get in third subject
Answer Posted / t eswara rao
ans : 75%
Sol :
(70+80+x)/3 = 75
150 + x = 225
x = 75
Is This Answer Correct ? | 28 Yes | 0 No |
Post New Answer View All Answers
A fly is there 1 feet below the ceiling right across a wall length is 30m at equal distance from both the ends. There is a spider 1 feet above floor right across the long wall eqidistant from both the ends. If the width of the room is 12m and 12m, what distance is to be travelled by the spider to catch the fly? if it takes the shortest path.
An equilateral triangle of sides 3 inch each is given. How many equilateral triangles of side 1 inch can be formed from it?
There is a room with 6' x 8'. A 1' tile is fixed along the 4 walls in one row. How many 1" tiles require to finish the work.
In Bangalore, during income tax deduction for a single person, the percentage increased by 3% and for middle house-holders, it decreased by 3%. What can you infer?
Radha, Geeta & Revathi went for a picnic.After a few days they forgot the date,day and month on which they went to picnic.Radha said that it was on Thursday,May 8 and Geeta said that it was Thursday May 10.Revathi said Friday June 8.Now one of them told all things wrongly,others one thing wrong and the last two things wrongly.If April 1st is tuesday what is the right day,date and month?
5 women given some of their heights(tall,medium,short)Hair( long, plainted),stards(Black or Brown), sari,2 medium,2-short.Tall-no sari.Plainted-medium.Answer the combinations.
Ravi's salary was reduced by 25%.Percentage increase to be effected to bring the salary to the original level is
If a man can swim downstream at 6kmph and upstream at 2kmph, his speed in still water is: It takes 30 days to fill a laboratory dish with bacteria. If the size of the bactiria doubles each day, how long did it take for the bactiria to fill one half of dish?
the sum of the present ages of a father and his son is 60 years. Six years ago, father's age was five times the age of the son. After 6 years, son's age will be?
The rectangle box with square base is open at the top. The maximum volume of the box made from 1200 m2 tin,in m3 is?
which questions will be coming
A ship started from port and moving with I mph and another ship started from L and moving with H mph. At which place these two ships meet ?
Three independent mechanisms A, B and C have been incorporated for power saving in a plant producing respectively 30%, 40% and 10% efficiency. Assuming that they operate independently, what is the net power efficiency achieved
one man or two women or three boys can do a work in 44 days then one man, one women and one boy together can fininsh the same work in ---- days
In a mixture, R is 2 parts and S is 1 part. In order to make S to 25% of the mixture, how much of R is to be added?