Dr. Lal & Jain Solutions for Chapter: Number Test and Time Sequence Test, Exercise 1: Exercise

How many 2’s are there in the following number series which are preceded by 5 but not followed by an odd number?
13523545245226245267823527524

How many 3’s are there in the following series, which are not preceded by an odd number but followed by 4?

1 5 3 2 3 4 6 5 3 4 7 8 3 4 9 2 3 4 5 6 3 4 3 5 3 4

How many B's are there in the following letter series, which are followed by G and the G is not be followed by S?

B G S Q B R N O B G N S Q L T B G Q T D B G U W X B G F

How many D’s are there in the following letter series, which are preceded by K and followed by Q?

K D R M B S K D Q K R B L K D Q M Q D K E F Q D K

If the numbers from $4$to $55$ which are divisible by $3$, and also the numbers which contain $3$ as one of the digits are removed, then how many numbers will be left?

At a railway station, a man said to Swapna, “A train leaves for Muzaffar Nagar after every $1:45$ hours. The last train has already left $50$ minutes ago and the next train will leave at $5:15 \mathrm{p}.\mathrm{m}$.” At what time was this information given to Swapna?

A trader said to his servant Ramu, “I leave for my house after every 2 : 40 hours from his shop. I have already gone to my house 55 minutes ago and next time I shall go to my house from the shop at 8 : 15 pm.” At what time this information was given to the servant?

A doctor said to his compounder, “I go to see the patients at their residence after every $3:30$ hours. I have already gone to the patient $1:20$ hours ago, and the next time I shall go at $1:40 \mathrm{pm}$". At what time this information was given to the compounder by the doctor?