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Power series of 7 i.e unit digit 7 power expansion has 7,9,3 and 1 and it is raised to power 413 i.e 413/4 remainder 1 and so last digit is 7 Power series of 9 i.e unit digit 9 power expansion has 9 and 1 and it is raised to power 547 i.e 547/2 remainder 1 and so last digit is 9 Power series of 4 i.e unit digit 4 power expansion has 4 and 6 and it is raised to power 624 i.e 624/2 remainder 0 and so last digit is 6 Power series of 2 i.e units digit 2 power expansion has 2,4,8 and 6 and it is raised to power 812 i.e 812/4 remainder 0 and so last digit is 6 All the last digits product=7*9*6*6 =8
Sum of the present ages of A, B, C and D is 60 years. After 6 years ratio of their ages is 6:5:5:4. What is C’s present age?
The current ages of A, B, and C are in the ratio of 4:5:6. Additionally, D's current age is 10 years more than the average age of A, B, and C. The total...
Rishav's current age is 25% more than Sourav's current age. In 8 years, the ratio of their ages will be 5:6. What will be Rishav's age 10 years from now?
Mohit is 4 years older than Nittu. The present age ratio of Nittu to Pawan is 11:6. Additionally, Mohit's current age is twice that of Pawan's. Based on...
Nine years ago, the ratio of ages of Raj and Vijay was 5:7, respectively. Four years hence, the ratio of ages of Sanjay and Vijay will be 2:3, respectiv...
Present ages of P and Q are in the ratio 4:7 respectively. If Q’s age, 15 years hence from now will be 6 times of P’s age, 6 years ago from now, the...
The ages of A, B and C together are 64 years. B is twice as old as A and C is 4 years older than A. What is the difference between ages of B and C?
The ratio of the present ages of father and his son is 5:2. The product of their ages 4 years ago was 31 times of his son’s age that year. What wa...
