Click to Chat

1800-2000-838

+91-120-4616500

CART 0

• 0

MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
`        Of the 200 candidates who were interviewed for a position at a call center, 100 had a two-wheeler, 70 had a credit card and 140 had a mobile phone. 40 of them had both, a two-wheeler and a credit card, 30 had both, a credit card and a mobile phone and 60 had both, a two wheeler and mobile phone and 10 had all three. How many candidates had none of the three?`
8 years ago

raj kaushik
26 Points
```										Number of candidates who had none of the three = Total number of candidates - number of candidates who had at least one of three devices.Total number of candidates = 200.Number of candidates who had at least one of the three = A U B U C, where A is the set of those who have a two wheeler, B the set of those who have a credit card and C the set of those who have a mobile phone.We know that AUBUC = A + B + C - {A n B + B n C + C n A} + A n B n CTherefore, AUBUC = 100 + 70 + 140 - {40 + 30 + 60} + 10Or AUBUC = 190.As 190 candidates who attended the interview had at least one of the three gadgets, 200 - 190 = 10 candidates had none of three.
```
8 years ago
raja kapoor
26 Points
```										THANX
```
8 years ago
sakshi zutshi
18 Points
```										A computer password consists of a letter of alphabet followed by three or four digits. Find the total number of passwords that can be formed.
```
5 years ago
anuj
21 Points
```										Totally there are 200
```
one year ago
Think You Can Provide A Better Answer ?

## Other Related Questions on Algebra

View all Questions »
• Complete JEE Main/Advanced Course and Test Series
• OFFERED PRICE: Rs. 15,900
• View Details