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Part of the cell wall of endodermal cells prevents water from moving into the cell is called Casparian strip.
Sum of the present ages of A, B, C and D is 40 years. After 6 years ratio of their ages is 6:5:3:2. What is C’s present age?
Present average age of A, B, and C is 30 years. If 5 years ago, the average age of A and C was 25 years, then find the present age of B.
The present age ratio of X and Y is 4:5. Also, the ratio of X’s age 7 years ago and Y’s age 6 years later is 1:2. Find their total current age.
Four years ago, the combined ages of Linda and Joan was 56 years. Four years hence, the ratio of their ages will be 4:5. Find the current age of Linda.