Question
Ferns, horsetails and lycophytes belong to which of the
following groups?Solution
Ferns, horsetails (often treated as ferns), and lycophytes (clubmosses, spikemosses, and quillworts) are all pteridophytes. However, they do not form a monophyletic group because ferns (and horsetails) are more closely related to seed plants than to lycophytes.
5 positive numbers are written on a piece of paper. Sum of first 3 numbers is 60 and ratio of the 4th and the 5th number is 2:3. If difference between t...
In a company, the average number of employees named Amit and Chinky is 25. The number of Chinky's name employees is 50% higher than the number of Amit's...
- The average marks of Karan in 5 different papers was calculated as 73. But it was later found that his marks in two subjects were wrongly entered as 80 and...
Find the median of the following observation:
24, 28, 29, 21, 19, 18, 25, 27, 17, 20, 28, 30, 11, 13The average of 22 numbers is 90. The average of the first 14 numbers is 95, while the average of the last 10 numbers is 85. If the 14th number is remove...
- The number of students in class 'A' is 144, and the ratio of the number of girls to boys in class 'A' is 5:7. If the average number of boys in classes 'A' ...
In a company team of 18 members, the average age is 29 years. When 6 more members join, the average age falls to 26. What is the average age of the new ...
- The average age of 15 students in a classroom is 20 years. When two new students, Raj and Simran, join the class, their ages being in the ratio of 7:8, the...
The average cost price of 14 pens (having equal cost price) decreased by Rs.2, when one of the pen is replaced by a new pen having cost price of Rs.80. ...
The average salary of 9 employees in an office is ₹40,000. When the manager leaves, the average salary becomes ₹36,000. Find the salary of the manager.
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