Question
How many five digit numbers can be formed using the
digits 0, 1, 2, 3, 4 and 5 which are divisible by 5, without repeating the digits?Solution
CASE 1: If last digit is 0, number of 5 digit can be formed by using the 1, 2,3,4& 5 = 5× 4×3×2 = 120 CASE 2: If last digit is 5, number of 5 digit can be formed by using the 0, 1, 2, 3 & 4 = 4× 4×3×2 = 96 (as a number can never start with 0) So total number of digits = 120 + 96 = 216
Anuj and Bhuvan started a business by investing Rs. 4500 and Rs. 4800, respectively. After 6 months, Bhuvan withdrew Rs. 600, and...
- 'A' started a business with Rs. 9,600. After 5 months, 'A' reduced his investment by Rs. 2,400 and 'B' joined the business with Rs. 11,200. At the end of 1...
- 'A' and 'B' entered into a partnership where 'A' invested Rs. 1,500 more than 'B'. 'A' stayed in the business for 8 months, while 'B' stayed for the entire...
Jagan and Magan started a business with a capital of Rs. 36000 and Rs. 63 ,000 and decide to share their profit according to their capital. But Gagan jo...
A, B and C start a business with investing the capital of Rs 1,500, 1,200 and 1,800 respectively. After 5 months, A invests additional amount of Rs. 100...
Ramesh, Rajan and Ritesh enter into partnership by making investments in the ratio 3 : 5 : 7. After a year, Ritesh invests another Rs. 337600 while Rame...
βAβ and βBβ started a business by investing Rs. 12,000 and Rs. 14000, respectively. 12 months later, βCβ joined the business by investing Rs...
A and B started a business. After 2 years they got Rs.1456 as profit. Find the ratio of the investments of A and B, if A’s share is Rs.624.
A, B, and C invested Rs. 7200, Rs. 4800, and Rs. x, respectively, in a business for equal time. If the profit received by C is Rs. 2500 out of a total p...
P, Q and R enter into a partnership by investing Rs.5000, Rs.8000 and Rs.5600 respectively. After 4 months, P invested Rs.1400 more and Q withdraw the ...