in a class, 20 opted for physics,17for maths,5for both and
10 for other subjects.the class contains how many students ?
Answer Posted / karthika
physics=20
maths=17
both=5
so, now phy+mat-both=20+17-5=32
other=10.
so...32+10=42
| Is This Answer Correct ? | 11 Yes | 1 No |
Post New Answer View All Answers
A person has Rs 100/- in his pocket, he can as 25 pencils or 15books. He kept 15% of the money for travelling expenses and purchased 5 ncils.So how many books he can purchase with the remaining money.
L:says all of my other 4 friends have money M:says that P said that exact one has money N:says that L said that precisely two have money O:says that M said that 3 of others have money. P:Land N said that they have money. all are liers.Who has money&who doesn't have?
In Madras, temperature at noon varies according to -t^2/2 + 8t + 3, where t is elapsed time. Find how much temperature more or less in 4pm to 9pm.
A person starts walking at a speed of 5km/hr through half the distance, rest of the distance he covers with a speed 4km/hr. Total time of travel is 9 hours. What is the maximum distance he can cover?
A man has 2 cows of total cost 200 rupees. He sold them for 210. For 1 cow he had a profit of 10% and for the other he had a loss of 10%. What is the price of each cow?
There is a safe with a 5 digit number as the key. The 4th digit is 4 greater than second digit, while 3rd digit is 3 less than 2nd digit. The 1st digit is thrice the last digit. There are 3 pairs whose sum is 11. Find the number.
A chain is broken into three pieces of equal lenths containing 3 links each. It is taken to a backsmith to join into a single continuous one . How many links are to to be opened to make it ?
With a 4/5 full tank a vehicle can travel 12 miles, how far can it travel with a 1/3 full tank
Choose the odd man out from the below mentioned options?
2. Why would you choose a database system instead of simply storing data in operating system files? Give and explain advantages of using DBMS.
Zulus always speak truth and Hutus always speak lies. There are three persons A,B&C. A met B and says " I am a Zulu or I am Hutu". We don't know what exactly he said. then B meets C and says to c that " A is a Zulu ". Then C replied " No, A is a Hutu ". How many Zulus are there ?
At 20% discount, a cycle is sold at a selling price of 2500 Rs. What is the actual price?
There N stations on a railroad. After adding x stations 46 additional tickets have to be printed. Find N and X.
one fast typist type some matter in 2hr and another slow typist type the same matter in 3hr. if both do combinely in how much time they will finish.
How many 1's are there in the binary form of 8*1024 + 3*64 + 3