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(B) Arhar wilt is a soil-borne disease: True, it primarily affects the plant through soil. (C) Smut disease of cereals are seed-borne: True, smut spores can contaminate seeds and transmit the disease. (D) Mildew and rusts are air-borne: True, spores of these diseases are typically spread through the air.
The average weight of 5 students in a study group is 38 kg. If the weight of 2 mentors is also included, then the new average weight of each person (men...
The average cost price of 21 pens (having equal cost price) decreased by Rs.3, when one of the pen is replaced by a new pen having cost price of Rs.55. ...
The average age of 24 children and their teacher's age are 21 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?
The average weight of 4 persons is 33 kg. The heaviest person’s weight is 30 kg more than the lightest person’s weight. If the average weight of the...
The base of a right pyramid is a square of side 10 cm. If its height is 10 cm. then the area (in cm2) of its lateral surface is:
The average age of 21 children is 30 years. 4 new children, whose average age is 15 years, join them. Find the average age of the 25 children.
The average of 19 numbers is 15.The average of first 9 numbers are12 and that of the last 9 numbers are15. What will be the 19th number?
The average weight of 7 boxes P, Q, R, S, T, U and V is 72kg. Another box A is added to group and the average now becomes 70kg. If another box C whose ...
The average of first two numbers and last two numbers of a set of six numbers is 70 and 45 respectively. If the overall average of all six numbers is 65...
The average mark obtained by 140 candidates in a certain examination is 50. If the average marks of passed candidates are 55 and that of the failed cand...
