Interested to Buy Any Domain ? << Click Here >> for more details...
In a class 80% have passed english,70% passed Hindi 10%
didnot passed either. If 144 students passed both. What is
the total strength of the class.
- 10 Answers
- 37903 Views
- Geometric Software, Google, Wipro, I also Faced
- E-Mail Answers
Answer Posted / avinash
let t = total no of students.. then
students who passed one or both subjects,
n(e U h) = n(e) + n(h) - n(e intersection h)
=> t = 0.8t + 0.7t - 144
=> t = 1.5t - 144
students who failed both subjects is 10% i.e. 0.1t
=>t-n(e U h) = 0.1t,
=>t -(1.5t - 144) = 0.1t
=>t- 1.5t- 0.1t = -144
=> -0.6t = -144
=>t = 240
| Is This Answer Correct ? | 98 Yes | 6 No |
Post New Answer View All Answers
Why RSD of area limit is 15?
Wind flows 160 miles in 330 min, for travelling 80 miles how much time does it require?
If x and x+10 are lengths containing right angle, what is the equation if area is 24 sq.cm
2, 3, 6, 7--- using these numbers form the possible four digit numbers that are divisible by 4.
if for h hours of work the salary is s and the employee gets x hours of medical leave, then what is the salary/hr ?
The various degrees of the vertices are marked in the dig. Find y?
If 15 pens costs Rs.90..then what will be the cost of 22pens?
What is degree of a Relation?
How many mod 3 counters are required to construct mod 9 counter.
The ratio of cost price to the market price of an article is 4: 5. What is the profit percentage if the ratio of the profit percentage on selling the article to the discount allowed on it is 5: 4?
32 people playing table tennis. how many matches to determine the winner.
Each row of letters or numbers has a rule connecting them. Write the next number or letterin the brackets. 1 , 4 , 9 , 16 , 25 , 36 , (_ _ _)
There are Brown and Black cows. In five days four black cows and 3 brown cows give as mush as milk that four brown cows and 5 black cows give in four days. If the black cow gives 10 litres of milk per day, how many liters of milk the Brown cow will give in one day? (Numbers are not certain)
low temperature at the night in a city is 1/3 more than ½ hinge as higher temperature in a day. sum of the low temp and higherst temp is 100C. then what is the low temperature
The price of Machine D equals the sum of the prices of machine A, B and C whose price are in the ratio 2:3:4 respectively. If weights of A, B, C and D varies as square of its individual price and difference of weight of D and A, B and C together is 9880 kg. Then what is the weight of D?
